Local-first toolkit

20+ media, document, and developer tools that run entirely in your browser. No uploads, no accounts.

100% local processing Works offline No accounts

All tools

Media

Video Studio

Trim, crop, and compress videos with WebAssembly and FFmpeg.

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Media

Image Editor

Crop, warp, and optimize images without leaving your browser.

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Files

ZIP Compressor

Create ZIP archives from files and folders with drag-and-drop.

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Files

PDF Merger

Merge, reorder, and compress PDF documents offline.

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Files

PDF Sign

Draw or upload a signature and place it anywhere on a PDF.

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Developer

Code Sandbox

Run and test code in multiple languages in an isolated runtime.

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Developer

JSON Formatter

Format, minify, and validate JSON with instant error feedback.

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Developer

Encode / Decode / Hash

Base64, URL, and hex encoding plus SHA hash digests.

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Developer

Color Picker

Pick colors and convert between HEX, RGB, and HSL with palettes.

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Developer

QR Code Generator

Turn text or links into a downloadable QR code, styled to match.

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Developer

Markdown Previewer

Write Markdown and see sanitized, live-rendered HTML side by side.

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Developer

UUID & Password Generator

Generate v4 UUIDs and strong random passwords with strength feedback.

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Developer

Diff Checker

Compare two blocks of text line by line with additions and removals highlighted.

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Developer

Unit Converter

Convert length, weight, temperature, data size, and time units instantly.

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Developer

Timestamp Converter

Convert between Unix timestamps, ISO 8601, and human-readable dates.

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Developer

Text Case & Lorem Ipsum

Convert text case, count words, and generate placeholder text.

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Developer

Regex Tester

Test regular expressions against sample text with live match highlighting.

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Developer

CSV ⇄ JSON

Convert CSV or TSV tables to JSON and back, with delimiter and header options.

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Developer

Cron Explainer

Translate cron expressions into plain English and preview next run times.

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Developer

Image ⇄ Base64

Convert images to Base64 data URIs and back, fully offline.

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Content

LinkedIn Post Formatter

Write with bold, italic, and bullets that render correctly in LinkedIn posts.

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