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OmniTools
83 Free Browser Utilities Available

Fast, Free & Private Browser Tools

Calculators, AI utilities, and media processors that run 100% locally in your browser. No sign-ups, no tracking, zero server uploads.

100% Client-Side & PrivateInstant In-Browser ProcessingNo Sign-Up or File Uploads
Trending Flagship Utilities
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Batch Image Resizer & Cropper

Resize photos to exact pixel dimensions or crop them to a shared aspect ratio, with local processing and batch downloads.

imageOpen Tool
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Aesthetic Screenshot & Mockup Beautifier

Style screenshots with frames, captions and backgrounds, then export a high-resolution image or supported local animation.

imageOpen Tool
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Image Compressor & Optimizer

Reduce image file size by adjusting encoding quality and dimensions, then inspect the downloaded result before sharing.

imageOpen Tool
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Client-Side Document Redactor & Censor (IDs & Contracts)

Cover sensitive regions in supported documents and inspect the exported copy before sharing it.

pdfOpen Tool
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PDF to JPG / PNG Converter

Render PDF pages as image files for presentations, previews or workflows that cannot accept PDF documents.

pdfOpen Tool
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PDF Page Organizer & Reorder Tool

Arrange PDF pages in the desired sequence and correct page orientation before saving a new document.

pdfOpen Tool
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Client-Side OCR Image-to-Text Extractor

Recognize text in an image with browser-based OCR and review the extracted characters before copying them.

extractorOpen Tool
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Private QR Code Scanner & Decoder

Read a QR code from a supported image or camera input and inspect its decoded contents before opening a link.

productivityOpen Tool
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ZIP Archive Creator & Extractor

Create a ZIP archive or inspect and extract supported ZIP contents using local browser processing.

productivityOpen Tool

All Utilities (83)

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Video Trimmer & Batch Clip Splitter

Cut a local video into named time ranges and export individual MP4 clips or a ZIP of multiple clips.

video-audioOpen Tool
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Batch Image Resizer & Cropper

Resize photos to exact pixel dimensions or crop them to a shared aspect ratio, with local processing and batch downloads.

imageOpen Tool
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Image Annotator & Redactor

Add arrows, shapes and text to screenshots, or cover selected image regions before downloading an annotated copy.

imageOpen Tool
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Image Collage & Contact Sheet Maker

Arrange local images in a grid for a photo collage, product sheet or visual review without uploading the originals.

imageOpen Tool
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Batch Image Watermarker

Place a watermark on multiple photos and download marked copies while keeping the original files on your device.

imageOpen Tool
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Interactive Image Comparison Slider

Compare two images with an interactive divider to inspect edits, compression changes or visual differences.

imageOpen Tool
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Print Size & DPI Calculator

Convert image pixels, print dimensions and DPI to estimate suitable print sizes before ordering or exporting artwork.

imageOpen Tool
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AI Background Remover (100% Private)

Create a transparent image cutout using an on-device model, then inspect the subject edges before downloading PNG.

imageOpen Tool
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Aesthetic Screenshot & Mockup Beautifier

Style screenshots with frames, captions and backgrounds, then export a high-resolution image or supported local animation.

imageOpen Tool
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Favicon & Multi-Size App Icon Generator

Turn an image into favicon and app-icon assets in multiple sizes for a website or application.

imageOpen Tool
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Image Converter (WebP / PNG / JPG / BMP)

Convert local images between supported formats and choose an output suitable for transparency, photographs or interface graphics.

imageOpen Tool
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Image Compressor & Optimizer

Reduce image file size by adjusting encoding quality and dimensions, then inspect the downloaded result before sharing.

imageOpen Tool
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Image Color Palette Extractor

Extract representative colors from a photo or graphic to build a starting palette for a design.

imageOpen Tool

EXIF Metadata Remover & Privacy Guard

Create a re-encoded image copy to reduce embedded metadata exposure before posting or sending a photo.

imageOpen Tool

SVG to PNG / High-Res Rasterizer

Rasterize an SVG at a chosen size to create a PNG for applications that require bitmap images.

imageOpen Tool

Image to ASCII Art Generator

Convert an image into a character-based representation and adjust its density for text-based sharing.

imageOpen Tool
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Video Frame Grabber & Thumbnail Snapshot

Seek through a local video and save selected frames as images for thumbnails, notes or visual review.

video-audioOpen Tool
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Video Audio Muter & Sound Stripper

Create a silent version of a local video using the output formats supported by your browser.

video-audioOpen Tool
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Video to Audio Extractor (MP4 to WAV/MP3)

Extract a supported video’s decoded audio and save a WAV file for listening, transcription or further editing.

video-audioOpen Tool
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Video to Animated GIF / Clip Maker

Turn a short video segment into an animated GIF for a demonstration, reaction or lightweight visual explanation.

video-audioOpen Tool

Audio Frequency & Tone Generator

Generate a test tone with frequency and waveform controls for basic audio demonstrations and equipment checks.

video-audioOpen Tool

BPM & Tempo Tap Counter

Tap along with a steady beat to estimate tempo in beats per minute without uploading a recording.

video-audioOpen Tool
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PDF Merger & Document Combiner

Combine selected PDF files into one document and arrange the input order before downloading the merged copy.

pdfOpen Tool
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PDF Watermark & Stamp Adder

Add a visible text watermark to PDF pages for drafts, review copies or attribution.

pdfOpen Tool
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PDF Page Deleter & Page Remover

Remove unwanted pages from a PDF and download a new copy containing the pages you want to keep.

pdfOpen Tool
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PDF Splitter & Page Extractor

Select PDF page ranges and create smaller documents for sharing, submission or separate review.

pdfOpen Tool
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Images to PDF Maker (JPG/PNG to PDF)

Arrange local images into a PDF with page settings suitable for sharing photographs, scans or visual records.

pdfOpen Tool
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Interactive PDF Editor & Annotator (Sign & Draw)

Place text, marks and signature artwork on PDF pages, then export an annotated document from your browser.

pdfOpen Tool
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Client-Side Document Redactor & Censor (IDs & Contracts)

Cover sensitive regions in supported documents and inspect the exported copy before sharing it.

pdfOpen Tool
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PDF to JPG / PNG Converter

Render PDF pages as image files for presentations, previews or workflows that cannot accept PDF documents.

pdfOpen Tool
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PDF Page Organizer & Reorder Tool

Arrange PDF pages in the desired sequence and correct page orientation before saving a new document.

pdfOpen Tool
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PDF Text Extractor

Extract embedded text from supported PDFs for copying, searching or further text processing.

pdfOpen Tool
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PDF Form Filler & AcroForm Editor

Fill supported PDF form fields and download the completed document for review or submission.

pdfOpen Tool
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Template Card & PDF Designer

Arrange text and visual elements into a card or page layout and export a printable document.

pdfOpen Tool
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Smart SVG to React / Next.js Component & Tailwind Styler

Convert SVG markup into a React component starting point and review its attributes before adding it to your project.

developerOpen Tool
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Code Snippet to Beautiful Image Exporter

Style a code snippet as a shareable image for documentation, presentations or technical posts.

developerOpen Tool
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HTML Entity Encoder & Decoder

Convert text characters to HTML entities or decode entity references for markup and content workflows.

developerOpen Tool
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CSS Minifier & Formatter

Compact or reformat CSS text for easier inspection and smaller stylesheet source files.

developerOpen Tool
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JSON Formatter, Validator & Fixer

Format or minify JSON, inspect syntax errors and review structured data locally in your browser.

developerOpen Tool
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JWT Token Inspector & Decoder

Decode a JSON Web Token’s header and payload to inspect claims without treating the decoded text as verified authentication.

developerOpen Tool
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Regex Tester & Pattern Matcher

Test a regular expression against sample text and inspect matching behavior using JavaScript regex syntax.

developerOpen Tool

Cryptographic Hash Generator (MD5, SHA-256, SHA-512)

Calculate supported digests for text or files and compare a result with an expected checksum.

developerOpen Tool

UUID / GUID & Random ID Generator

Generate random identifiers for application records, fixtures and other workflows that need UUID-style values.

developerOpen Tool

Base64 Text & URL Encoder / Decoder

Encode text as Base64 or decode a Base64 representation to inspect its text content.

developerOpen Tool

URL & URI Component Encoder / Decoder

Percent-encode text for URL components or decode escaped values while checking which delimiters should remain structural.

developerOpen Tool

Text & Code Diff Compare Checker

Place two text versions side by side to review edits and inspect the differences supported by the current view.

developerOpen Tool
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Client-Side OCR Image-to-Text Extractor

Recognize text in an image with browser-based OCR and review the extracted characters before copying them.

extractorOpen Tool
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CSV to JSON & JSON to CSV Converter

Convert tabular data between CSV and JSON and inspect column names, delimiters and values before exporting.

extractorOpen Tool
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Excel & Spreadsheet Workbook Viewer (.xlsx / .xls / .csv)

Open a local workbook or CSV file to inspect sheets and tabular data without uploading the document.

extractorOpen Tool
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SQLite Database & SQL Query Runner

Inspect a local SQLite database and run supported queries against its in-browser copy.

developerOpen Tool
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Text Case Converter (camelCase, snake_case, PascalCase, kebab-case)

Change text capitalization or create common identifier styles for labels, code and content workflows.

extractorOpen Tool

Word, Character & Reading Time Counter

Count words, characters and other text statistics, and estimate reading time for a draft.

extractorOpen Tool

Duplicate Line Remover & List Sorter

Remove repeated lines from a text list and review the remaining entries before copying the result.

extractorOpen Tool

Lorem Ipsum Dummy Text Generator

Generate placeholder text to test typography, spacing and page layouts before final copy is ready.

extractorOpen Tool

URL Slug & Permalink Generator

Turn a title or phrase into a URL-friendly slug and review the result before using it in a route.

extractorOpen Tool
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QR Code Generator & Styler

Create a QR code from a URL or text and inspect the saved image before placing it in a design.

productivityOpen Tool
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OpenGraph & Meta Tag Generator with Live Preview

Draft page titles, descriptions and social-sharing tags, then copy the markup into the correct page template.

productivityOpen Tool
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Secure Password Generator & Entropy Meter

Generate a random password using the available length and character options, then store it in a password manager.

productivityOpen Tool

Color Code Converter (HEX, RGB, HSL, CMYK)

Convert common color-code representations and inspect equivalent values for design and development tasks.

productivityOpen Tool

Universal Unit & Measurement Converter

Convert supported measurements between units and inspect the numerical result for everyday calculations.

productivityOpen Tool
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Private QR Code Scanner & Decoder

Read a QR code from a supported image or camera input and inspect its decoded contents before opening a link.

productivityOpen Tool
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ZIP Archive Creator & Extractor

Create a ZIP archive or inspect and extract supported ZIP contents using local browser processing.

productivityOpen Tool
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Batch File Renamer & Formatter

Apply a naming pattern to selected files and download renamed copies without changing the originals on disk.

productivityOpen Tool
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Timestamp & Time-Zone Meeting Converter

Convert epoch timestamps into readable dates and compare supported time-zone representations.

developerOpen Tool
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Markdown Editor & Live HTML / PDF Previewer

Write Markdown, inspect the supported live preview and export HTML or use your browser’s print workflow.

developerOpen Tool
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JSON ↔ YAML Bidirectional Converter

Convert supported structured data between JSON and YAML, then review scalar types and nesting in the result.

developerOpen Tool
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JSON to TypeScript & Zod Schema Generator

Use a JSON example to draft TypeScript types or a schema starting point, then review the inferred structure.

developerOpen Tool
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Cron Expression Parser & Schedule Explainer

Inspect a cron expression and review the schedule behavior supported by this parser before configuring a job.

developerOpen Tool
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CSV Cleaner, Deduplicator & Sorter

Inspect a CSV table and apply supported cleanup operations before exporting a revised dataset.

extractorOpen Tool
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List Comparison & Diff Tool (A ∩ B, A \ B)

Compare two line-separated lists to find shared entries and values present in only one list.

extractorOpen Tool
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Audio Trimmer & Cutter (WAV Visualizer)

Choose start and end times in a local recording, add optional fades and download the selected audio as WAV.

video-audioOpen Tool
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Subtitle Converter & Time Offset Editor (SRT ↔ VTT)

Convert subtitle text between SRT and WebVTT and adjust cue timing for a video playback workflow.

video-audioOpen Tool
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Date Difference & Duration Calculator

Compare two dates or calculate a date offset, then review the result for your calendar planning task.

productivityOpen Tool
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PDF Compressor & Resizer

Try local PDF size-reduction settings and compare the resulting file with the original document.

pdfOpen Tool
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Excel to SQL & SQLite Converter

Turn tabular spreadsheet data into SQL statements or a SQLite database for a local data workflow.

developerOpen Tool
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SQLite Database to Excel & CSV

Read supported SQLite data and export tabular results for a spreadsheet or CSV-based workflow.

developerOpen Tool
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JSON to CSV & TSV Converter

Convert JSON records to delimited text for spreadsheet imports and other row-based data workflows.

developerOpen Tool
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SQL Formatter & Prettifier

Format SQL query text for easier reading and review without connecting to your database.

developerOpen Tool
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Mock & Fake Data Generator

Create synthetic sample records for interface prototypes, development tests and import experiments.

developerOpen Tool
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JSON & CSV Data Diff Checker

Compare supported structured datasets and inspect added, removed or changed values without uploading them.

developerOpen Tool
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Audio Converter & Encoder

Decode a supported audio file and export PCM WAV at the selected sample rate directly in your browser.

video-audioOpen Tool
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Audio Compressor & Bitrate Reducer

Reduce PCM audio storage by adjusting supported sample-rate settings, then compare the output size and sound.

video-audioOpen Tool
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Audio Speed & Pitch Changer

Adjust the playback rate of local audio, audition the result and export a rendered version for supported sources.

video-audioOpen Tool

High-Performance, Zero-Server Browser Utilities

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), 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.

Frequently Asked Questions

Choose a tool by the result you need

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.

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.