Calculators, AI utilities, and media processors that run 100% locally in your browser. No sign-ups, no tracking, zero server uploads.
Resize image pixel dimensions or crop to a new aspect ratio in your browser. Preview a representative image before applying the settings to a batch.
Style screenshots with frames, captions and backgrounds, then export a high-resolution image or supported local animation.
Reduce image file size by adjusting encoding quality and dimensions, then inspect the downloaded result before sharing.
Cover sensitive regions in supported documents and inspect the exported copy before sharing it.
Render PDF pages as image files for presentations, previews or workflows that cannot accept PDF documents.
Arrange PDF pages in the desired sequence and correct page orientation before saving a new document.
Recognize text in an image with browser-based OCR and review the extracted characters before copying them.
Read a QR code from a supported image or camera input and inspect its decoded contents before opening a link.
Explore ZIP folders, preview supported files, download individual entries, or create a new archive with selectable compression. Files stay on your device.
Cut a local video into named time ranges and export individual MP4 clips or a ZIP of multiple clips.
Test your vocal range and discover your singing voice classification with real-time browser pitch detection from your microphone.
Inspect embedded GPS location coordinates, camera exposure settings, and device metadata from photos on an interactive map, and strip EXIF before sharing.
Compare sample password strength, character-pool entropy, and estimated brute-force crack times at four illustrative guessing speeds.
Design smooth multi-layer box shadows and frosted glassmorphism card styling with instant Vanilla CSS and Tailwind code export.
Inspect HTTP Archive HAR files exported from DevTools with waterfall timelines, MIME filters, status code breakdowns, and payload drawers.
Unpack production JavaScript source maps, explore reconstructed source directories, inspect original unminified files, and download as ZIP.
Visually orchestrate multi-container Docker applications with pre-configured templates, port mapping, persistent volumes, and valid YAML export.
Hide confidential text messages and files inside images using Least Significant Bit LSB encoding and hardware-accelerated AES-GCM encryption.
Generate TOTP codes from a Base32 secret, setup link, or QR image. Choose SHA-1/256/512, six or eight digits, and optional encrypted saving.
Generate RSA and Curve25519 PGP keypairs, encrypt or decrypt armored messages, and create or verify digital signatures client-side.
Pack multiple PNG sprites into compact power-of-two texture atlases using MaxRects bin-packing with Phaser, PixiJS, and CSS coordinate export.
Convert flat 2D textures and heightmaps into tangent-space normal maps with Sobel gradient filters, invert Y controls, and 3D lighting preview.
Convert desktop TTF and OTF fonts to compressed WOFF2 and WOFF web formats bidirectionally using WebAssembly with live typography preview.
Resize image pixel dimensions or crop to a new aspect ratio in your browser. Preview a representative image before applying the settings to a batch.
Add arrows, shapes and text to screenshots, or cover selected image regions before downloading an annotated copy.
Design photo collages with featured layouts, per-photo crop controls, editable captions and image or A4 PDF export.
Place a watermark on multiple photos and download marked copies while keeping the original files on your device.
Compare two images with an interactive divider to inspect edits, compression changes or visual differences.
Check how large an image can print from its pixel dimensions and DPI. Compare physical print sizes before resizing or sending an image to a printer.
Create a transparent image cutout using an on-device model, then inspect the subject edges before downloading PNG.
Style screenshots with frames, captions and backgrounds, then export a high-resolution image or supported local animation.
Turn an image into favicon and app-icon assets in multiple sizes for a website or application.
Convert local images between supported formats and choose an output suitable for transparency, photographs or interface graphics.
Reduce image file size by adjusting encoding quality and dimensions, then inspect the downloaded result before sharing.
Extract representative colors from a photo or graphic to build a starting palette for a design.
Create a re-encoded image copy to reduce embedded metadata exposure before posting or sending a photo.
Rasterize an SVG at a chosen size to create a PNG for applications that require bitmap images.
Convert an image into a character-based representation and adjust its density for text-based sharing.
Seek through a local video and save selected frames as images for thumbnails, notes or visual review.
Remove audio from a local video in your browser. Preview the muted result and download it, with supported formats and limits explained beside the tool.
Extract a supported video’s decoded audio and save a WAV file for listening, transcription or further editing.
Turn a short video segment into an animated GIF for a demonstration, reaction or lightweight visual explanation.
Generate pure sine, square, sawtooth tones, frequency sweeps, and binaural beats from 1 Hz to 22,000 Hz. Export test audio directly to WAV.
Tap along with a steady beat to estimate tempo in beats per minute without uploading a recording.
Combine selected PDF files into one document and arrange the input order before downloading the merged copy.
Add a visible text watermark to PDF pages for drafts, review copies or attribution.
Remove unwanted pages from a PDF and download a new copy containing the pages you want to keep.
Select PDF page ranges and create smaller documents for sharing, submission or separate review.
Arrange local images into a PDF with page settings suitable for sharing photographs, scans or visual records.
Place text, marks and signature artwork on PDF pages, then export an annotated document from your browser.
Cover sensitive regions in supported documents and inspect the exported copy before sharing it.
Render PDF pages as image files for presentations, previews or workflows that cannot accept PDF documents.
Arrange PDF pages in the desired sequence and correct page orientation before saving a new document.
Extract embedded text from supported PDFs for copying, searching or further text processing.
Fill supported PDF form fields and download the completed document for review or submission.
Arrange text and visual elements into a card or page layout and export a printable document.
Convert SVG markup into a React component starting point and review its attributes before adding it to your project.
Style a code snippet as a shareable image for documentation, presentations or technical posts.
Convert text characters to HTML entities or decode entity references for markup and content workflows.
Compact or reformat CSS text for easier inspection and smaller stylesheet source files.
Format JSON into readable, indented text and find syntax errors. Check the result before copying; valid JSON syntax does not guarantee valid application data.
Decode a JSON Web Token’s header and payload to inspect claims without treating the decoded text as verified authentication.
Test a regular expression against sample text and inspect matching behavior using JavaScript regex syntax.
Calculate supported digests for text or files and compare a result with an expected checksum.
Generate random identifiers for application records, fixtures and other workflows that need UUID-style values.
Encode UTF-8 text as Base64 or decode Base64 back to text in your browser. See examples for plain text and accented characters. Encoding is not encryption.
Percent-encode a URL query value or path component, or decode it back to text. Check examples for spaces, ampersands and plus signs before copying the result.
Place two text versions side by side to review edits and inspect the differences supported by the current view.
Recognize text in an image with browser-based OCR and review the extracted characters before copying them.
Convert tabular data between CSV and JSON and inspect column names, delimiters and values before exporting.
Open a local workbook or CSV file to inspect sheets and tabular data without uploading the document.
Inspect a local SQLite database and run supported queries against its in-browser copy.
Change text capitalization or create common identifier styles for labels, code and content workflows.
Count words, characters and other text statistics, and estimate reading time for a draft.
Remove repeated lines from a text list and review the remaining entries before copying the result.
Generate placeholder text to test typography, spacing and page layouts before final copy is ready.
Turn a title or phrase into a URL-friendly slug and review the result before using it in a route.
Create a QR code from a URL or text and inspect the saved image before placing it in a design.
Draft page titles, descriptions and social-sharing tags, then copy the markup into the correct page template.
Generate a random password using the available length and character options, then store it in a password manager.
Edit six color models bidirectionally, sample screen colors where supported, and build complementary palettes, tints, shades, and tones locally.
Convert supported measurements between units and inspect the numerical result for everyday calculations.
Read a QR code from a supported image or camera input and inspect its decoded contents before opening a link.
Explore ZIP folders, preview supported files, download individual entries, or create a new archive with selectable compression. Files stay on your device.
Apply a naming pattern to selected files and download renamed copies without changing the originals on disk.
Convert Unix timestamps in seconds or milliseconds to a readable date, or convert a date to Unix time. Compare UTC and supported time zones in your browser.
Write Markdown, inspect the supported live preview and export HTML or use your browser’s print workflow.
Convert supported structured data between JSON and YAML, then review scalar types and nesting in the result.
Use a JSON example to draft TypeScript types or a schema starting point, then review the inferred structure.
Inspect a cron expression and review the schedule behavior supported by this parser before configuring a job.
Clean CSV text by trimming cells, removing identical rows and sanitizing formula-like values. Preview the result before downloading; comparison uses the whole row.
Compare two line-separated lists to find shared entries and values present in only one list.
Choose start and end times in a local recording, add optional fades and download the selected audio as WAV.
Convert subtitle text between SRT and WebVTT and adjust cue timing for a video playback workflow.
Compare two dates or calculate a date offset, then review the result for your calendar planning task.
Compress PDF documents locally in your browser. Choose Recommended, Low, Extreme, or Lossless presets to shrink files for email and web uploads.
Turn tabular spreadsheet data into SQL statements or a SQLite database for a local data workflow.
Read supported SQLite data and export tabular results for a spreadsheet or CSV-based workflow.
Convert JSON records to delimited text for spreadsheet imports and other row-based data workflows.
Format SQL query text for easier reading and review without connecting to your database.
Create synthetic sample records for interface prototypes, development tests and import experiments.
Compare supported structured datasets and inspect added, removed or changed values without uploading them.
Convert between MP3, WAV, OGG, M4A, and AAC locally in your browser. Adjust bitrates, sample rates, and channels with zero uploads.
Compress mixed audio formats locally, track each file in a batch queue, and download results individually or as a ZIP.
Adjust the playback rate of local audio, audition the result and export a rendered version for supported sources.
Estimate cycle dates from your last period and average cycle length. Calendar estimates cannot confirm ovulation or prevent pregnancy.
Plan approximate upcoming period dates from your cycle history, with clear limits for irregular cycles and long-range predictions.
Estimate a due date and gestational age using a last period, estimated conception date, or IVF embryo transfer date.
Explore a rough adult height estimate using parental measurements. Family averages cannot predict an individual child’s growth precisely.
Compare bedtime and wake-up options using a simplified cycle interval and your estimated time to fall asleep.
Work backward from pregnancy dating to explore an approximate conception window, with uncertainty explained.
Estimate adult body fat from circumference measurements and compare the result with its measurement limitations.
Estimate resting energy needs and daily expenditure from body measurements and an activity multiplier.
Explore a simplified inheritance model. Displayed percentages are illustrative assumptions, not personalized genetic predictions.
Model the approximate caffeine remaining after one serving using an adjustable half-life and bedtime.
Estimate a starting bra size from bust and underbust measurements, then compare regional labels and sister sizes.
Compare measurement ratios for clothing and styling. Shape categories are descriptive conventions, not health assessments.
Calculate running pace from distance and elapsed minutes. See minutes per kilometer, minutes per mile, and average speed in km/h together.
Calculate screen width and height from diagonal and aspect ratio, or find the diagonal from width and height. Compare TV and monitor sizes in inches or centimeters.
Calculate the final exam score needed for a target overall grade using your current percentage and exam weight. Includes worked examples and grading assumptions.
Convert your college or board CGPA to percentage instantly with support for CBSE 9.5 multiplier, Mumbai University, VTU, and WES 4.0 GPA.
Calculate your cumulative high school and college GPA with weighted AP, IB, and Honors credit support. Free, private, and instant.
Calculate your overall weighted class grade based on assignments, tests, and quizzes. Fast, client-side syllabus grade calculator.
Generate an instant grading scale table for any test or quiz. Fast, clean EZ grader for teachers and students with custom question counts.
Calculate your college attendance percentage and see how many classes you can safely skip or must attend to meet the 75% or 80% criteria.
See how much interest you save and how many years you shave off your mortgage with extra monthly or lump-sum payments. 100% private, client-side amortization planner.
Simulate long-term wealth accumulation and compound interest with regular contributions. Free, private visual investment growth planner.
Calculate exact monthly car loan payments including sales tax, trade-in value, and dealer fees. Fast, client-side vehicle affordability planner.
Calculate how long it takes to pay off credit card debt and see how much interest you save with fixed monthly payments. Free debt-free planner.
Calculate the exact hourly, daily, and project rate you must charge to match your corporate salary goal after taxes and business overhead.
Create, customize, and download professional PDF invoices online. 100% private — client details and line items are processed locally with zero uploads.
Measure your clicks per second with a free CPS test. Choose a timer, click or tap to start, and copy your score to challenge a friend.
Count significant figures, highlight meaningful digits, and round measurements. Calculate addition, subtraction, multiplication, and division with a step-by-step explanation.
Find out how old you look with a free AI age guesser. Upload a photo or take a webcam selfie, compare multiple faces, and download a result card. Photos stay in your browser.
See the public address websites receive, inspect your network provider, and copy your IP in one click.
Look up domain DNS records through a public DNS resolver. Inspect returned records and compare the result when troubleshooting domain configuration.
Compare your public IP with WebRTC candidates to check possible VPN IP exposure. No camera access needed. The test contacts IP lookup and STUN servers.
Measure download and upload speed in Mbps, plus HTTPS latency and jitter. See MB/s equivalents and compare your browser connection to Cloudflare.
Test browser HTTPS latency and jitter with five probes or continuous monitoring. See failed requests in real time; this does not measure download speed or ICMP ping.
Calculate IPv4 network boundaries, masks, and host ranges locally. Explore the network and host bits with a live 32-bit visualizer.
Convert dotted IPv4, hexadecimal, or an unsigned integer into seven copyable representations. No DNS lookup or connection is made.
Normalize a MAC address, derive a modified EUI-64 link-local address, and check a small bundled vendor-prefix dictionary.
Search a bundled IANA port reference by number or service, then review transport assignments and practical security guidance. This is not a port scanner.
Inspect a public PEM certificate locally: subject, issuer, validity dates, SANs, signature algorithm, and public key details. Trust is not verified.
Build Linux file permissions with an interactive checkbox matrix. Convert octal values into symbolic permissions and copy a chmod command without running it.
Compare foreground and background colors using the WCAG relative-luminance formula. Inspect AA, AAA and non-text thresholds alongside a live preview.
Compare two metric radial tire sizes, see their nominal dimensions overlaid, and estimate the change in road speed for a given speedometer reading.
Estimate fuel use and trip cost from distance, efficiency and pump price. Compare metric or US units, include a return journey, and split the fuel bill.
Explore your Big 3 with tropical astronomical positions, instant GPS geolocation or offline city search, elemental breakdown, and a downloadable card.
Compare any two zodiac signs using traditional elements and sign-level aspects. Scores are illustrative conversation prompts, not relationship predictions.
Find your animal, year element, and yin/yang polarity with the Lunar New Year cutoff. Explore the sixty-year cycle and popular cultural associations.
Wait for green, react, and discover your five-round average. Test with a mouse, touch, or keyboard and download a card to share.
Find your typing rhythm with common English words, live WPM, accuracy, and a downloadable practice certificate.
Explore facial geometry with a private landmark overlay, a manually marked hairline, and a downloadable golden mask card.
Turn your birth date into a live receipt of elapsed time, estimated biological totals, orbital travel, and your birth moon phase.
Calculate circle skirt waist radius, outer cut radius, and fabric yardage for full, half, quarter, and three-quarter skirts with clear folding and panel guides.
Calculate knife and box pleat spacing, adjusted widths, underfold depths, and fabric requirements. Follow a numbered pinning ruler for skirts and curtains.
Convert sewing pattern yardage between 45, 54, and 60-inch fabric widths. Add print or nap allowances, enter fractions, and compare buying amounts in yards.
Calculate quilt binding strips, perimeter, overlap, and fabric yardage. Compare standard and extra-wide backing with seam layouts and four-inch edge overage.
Convert HEIC and HEIF photos to JPG or PNG locally. Choose JPEG quality, review individual previews, and download a batch ZIP without uploading your photos.
Join screenshots vertically or horizontally. Reorder images, crop repeated overlap, set spacing and output size, then download one stitched PNG locally.
Find exact duplicate photos or review visually similar images locally. Compare groups, exclude extra copies, and download a ZIP of the photos you keep.
Compare two PDFs locally with word changes, page overlays and pixel highlights. Review page-by-page text differences and download a comparison summary.
Record a screen, window or browser tab with optional microphone and webcam overlay. Pause, preview and download locally in a supported desktop browser.
Compress videos locally with MP4 or WebM output, resolution controls and optional target size. Preview the result and compare actual file sizes before saving.
Crop a portrait to printed passport photo dimensions, adjust its position and download a JPG or A4 photo sheet. Includes US, UK and custom printed sizes.
Straighten document photos with four-corner perspective correction. Adjust brightness, choose color or black and white, and save PNG pages or an A4 PDF.
Make scanned PDFs searchable with local OCR. Choose a recognition language, inspect extracted text and download image pages with a selectable text layer.
Join audio clips locally in your chosen order. Add optional crossfades, preview the merged recording and download WAV or MP3 without uploading your files.
Convert supported MOV, MKV, MP4 and WebM videos locally to MP4 or WebM. Set output width, choose compression and preview the result before downloading.
Edit an animated GIF locally: trim its time range, resize, reverse playback or change speed and frame rate. Preview the animation and download a looping GIF.
Extract positioned PDF text into spreadsheet rows and columns. Adjust column detection, preview each page and download an Excel workbook or page CSV locally.
Convert DOCX to an image-based PDF locally. Review rendered Word pages, images and tables before downloading, with clear limits on fonts and layout fidelity.
Convert PDF text into an editable Word DOCX locally. Preview extracted reading order and rebuild paragraphs with page breaks and approximate font sizes.
Compare connection stability as you move between rooms using live latency, jitter and failed-request measurements. Browser-run testing with clear limits.
Enhance voice recordings, podcasts, and audio clips with studio presets, live original/enhanced comparison, and local WAV or MP3 export. Zero audio uploads.
Pro-OmniTools was engineered to solve the privacy and paywall problems of modern web converters. Most online utilities upload your confidential documents, contracts, photos, and code snippets to remote backend servers for processing, creating severe security risks, long queue wait times, and hidden subscription fees.
By leveraging cutting-edge browser technologies including WebAssembly (WASM), HTML5 Canvas API, and modern client-side neural networks (via Tesseract.js), Pro-OmniTools executes all file conversions, image background extractions, document redactions, and PDF manipulations entirely inside your browser memory. Your files never leave your computer, ensuring absolute privacy, lightning speed, and zero daily caps.
Find a workflow that matches your input and required output. Each tool page explains its supported behavior, practical limits and common questions before you commit to a larger job.
Straighten photographed paper with manual perspective correction, prepare printed passport-size crops, or add recognized text to scanned PDFs. Check the original against the export; passport dimensions alone do not establish acceptance and OCR can misread important values.
Reduce video resolution and bitrate, convert supported sources to MP4 or WebM, edit an existing GIF, or arrange audio clips with optional crossfades. Inspect actual output sizes, timing and sound before sharing.
Recover editable text from PDFs, infer spreadsheet columns from positioned text, or render a DOCX into an image-based PDF. Preview reading order and page appearance: these workflows have different layout, image and text-preservation behavior.
Convert HEIC photos, stitch screenshots into a long image, review duplicate photos, compare PDF versions, or record a screen walkthrough. Files and recordings are processed locally; screen capture depends on browser permissions and support.
Draft circle-skirt radii and panel layouts, mark evenly spaced pleats, compare fabric bolt widths, or estimate quilt binding and backing. Check the live diagrams, seam assumptions, and worked measurement examples before cutting.
Measure a five-round reaction time, practice typing speed and accuracy, explore facial geometry with a local landmark overlay, or turn your birth date into a life receipt. Each tool includes its assumptions and a branded PNG download for sharing.
Calculate your Sun, Moon, and rising signs from a birth date, time, and location, then download a card to share. Compare two zodiac signs through symbolic elements and aspect angles, or find your Chinese zodiac animal, year element, and yin/yang polarity using the Lunar New Year cutoff. Explore these traditional frameworks for educational and cultural entertainment.
Analyze mortgage acceleration with extra principal payments to save thousands in lifetime interest, simulate long-term compound growth with regular contributions, or evaluate car affordability against the 20/4/10 rule. Escape revolving credit card debt cycles and calculate required contractor hourly rates factoring in taxes and overhead.
Determine the exact score required on your final exam to pass or earn an A, compute semester and cumulative GPAs with course credits, or calculate weighted grade averages across assignments and exams. Generate instant color-coded EZ Grader test charts for quick paper grading or check minimum attendance criteria.
Start with the required pixel dimensions, then choose a format and compression setting. Resizing changes the pixel grid; JPEG or WebP quality changes encoding. Check text and transparent edges in the actual downloaded file rather than assuming a smaller file has the same visual detail.
Combine or reorder pages when the document structure is the problem. Extract text when you need its contents, and render images when you need a page picture. A rasterized copy can lose searchable text and interactive fields, so retain the original PDF for tasks that depend on those features.
Calculate 90-minute ultradian sleep cycle alarms to minimize morning sleep inertia, estimate total daily energy expenditure (TDEE) and macro distributions, or model caffeine clearance kinetics for better rest. All calculations run client-side as educational planning models.
Back-calculate conception dates and fertile intercourse windows, estimate pregnancy milestones, or explore Mendelian inheritance models for child blood type and eye color. Convert regional apparel sizes and analyze body proportions with 100% browser privacy.
Select the relevant time range before exporting a large recording. Video containers and codecs are different, and browser support determines which files can be decoded or encoded. Keep a source copy and listen to or watch the saved result, including both cut boundaries.
Compare an original recording with four audio enhancement presets, adjust the effect strength, and export WAV or MP3. For singing practice, use live microphone pitch detection to capture comfortable low and high notes and measure the span in semitones and octaves. A vocal range measurement does not determine your voice type.
Check a photo for embedded GPS coordinates and camera metadata, then download a copy without GPS tags when needed. To carry a text message inside an image, use PNG steganography with optional encryption. Missing GPS does not establish where a photo was taken, and resizing or converting a steganographic image can destroy its message.
Pack image frames into a sprite sheet with layout metadata for your application, or turn a height image into a normal map and check its lighting direction in your renderer. Convert supported fonts to WOFF2 or decode WOFF2 to TTF, then preview the downloaded font in its destination application.
Open a HAR capture to examine request timings and responses, or browse original source files embedded in a JavaScript source map. Build Docker Compose YAML with service ports, volumes, and environment variables, then validate it with Docker before starting containers. Review captures and configuration for credentials before sharing them.
Generate time-based one-time passwords from a supported secret or QR image and check the countdown against the account’s settings. Use PGP to encrypt, decrypt, sign, or verify messages with the appropriate keys. Keep authentication secrets and private keys private; a valid signature only establishes a match to the signing key, not the owner’s identity.
Format JSON or SQL to improve readability, then distinguish syntax checks from application correctness. A valid object can still have the wrong field types. Compare structured values when order or nesting matters, and avoid treating a formatted document as proof that an API or query behaves correctly.
Start with your public IP and provider details, then inspect DNS records, WebRTC candidates, or browser HTTPS latency depending on the symptom. These checks show one browser path and one resolver or endpoint at a time, so compare results after a VPN, router, Wi-Fi, or DNS change instead of treating a single measurement as a complete security or performance audit.
Review column names, missing values and identifiers before converting a table. Spreadsheet applications can reinterpret dates and leading zeros, while relational databases have explicit schemas. Try a small sample, compare row counts, and preserve the original file until the destination import is verified.
Use a word count for draft length, a unit conversion for a measurement, or a QR code for a tested destination. Confirm the relevant convention: counting rules, significant figures and scan size each affect the usefulness of the result. These utilities answer different questions and should be checked in their final context.
Files are processed on your device. A connection is still needed to open tools, verify the website session and download required application assets. For confidential work, also consider the security of your device, browser extensions and the location where you save the result.
