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Browser tool that shows who likes your Instagram posts the most. Ranked leaderboards for followers and non-followers.

一个 html 小工具，为各类证件图片添加全屏水印。Privacy-friendly fullscreen watermark tool for sensitive images.

Visualize view and projection matrices from the comfort of your browser

A sleek, lightweight browser tool to format and visualize FHIR JSON responses. Paste raw data, click “Format JSON,” and instantly view a clean, color-coded, easy-to-read output. Includes error navigation, resource filtering, copy-to-clipboard, and a built-in legend for quick interpretation.

🛠️ Ethereum key explorer and message signing tool. Paste a private key to get the public key, Keccak-256 hash, and address. Works entirely offline in your browser.

Chrome extension to give fast frequency data of Japanese words found in the current opened tab.

A simple web-based code runner

Smart web app that optimizes paid leave placement around weekends and national holidays. Free, browser-based, no backend required.

🫵 Where are you in the FEFU admission table?

Add Gridfinity-compatible bases to any STL model — free, in-browser, no install

Browserbasiertes Sicherheitstool

Web-based Dragon Quest VIII tool for tracking inventory and alchemy recipes, showing craftable items, and optimizing equipment based on owned gear.

Visual Matter.js rigid body editor with correct vertex export, Pixi rendering, and live physics preview.

Generate stereograms online - Drag and drop depthmap and texture to make magic eye images online. Allows you to make autostereograms in your browser for free. Made by lavaboosted with p5js.

Translate selected text instantly using Ctrl+L. Supports all languages and automatically detects the selected language, translating it into your browser's default language. Simple, fast, and efficient.

Browser-based Shenmue 1 collection and Gacha Capsule progress tracker.

CryptoLock 是一个完全在浏览器中运行的本地加密/解密和文件校验工具套件。所有操作都在本地执行，不上传任何数据到服务器，确保您的数据安全。

A browser-based tool for intelligently merging multiple Costco receipt JSON files with automatic deduplication and data completion.

Validate FHIR resources directly in your browser. This open-source tool checks required fields, highlights missing elements, and flags invalid values for common resource types—all without server dependencies. Ideal for quick diagnostics, learning FHIR structure, or validating profiles securely.

Convert AWS SES DKIM CSV to Cloudflare-importable DNS zone file — runs entirely in your browser.

Web sayfalarındaki metinleri sağ tık menüsü ile hızlıca not almanızı, kaynak URL ve tarih bilgisiyle birlikte tarayıcı hafızasında saklamanızı sağlayan Chrome eklentisi.

Convert images, audio & video entirely in your browser — no uploads, no servers. Powered by FFmpeg WebAssembly.

Browser tool for generating color by numbers pixel math worksheets for addition and subtraction practice.

Free, instant online screen capture tool

A powerful browser-based tool for creating custom CSS icon systems using Unicode emojis. Generate production-ready CSS with live preview, search, filtering, and export/import functionality.

Browser-based image resizer and compressor. Resize, compress JPEG/WebP/PNG entirely client-side — no uploads, no servers.

The Ultimate Letterboxd Mass Unfollow & Block Tool. Find non-followers, mutuals, fans & blocked users. Bulk unfollow, block or follow with Anti-Ban protection. Export lists, multi-language UI. No installation required — browser console script. By @miabeyefendi

🧰 A collection of simple JavaScript tools that can be run directly in the browser.

MHTML forensics toolkit for userscript and browser extension development — parse MHTML files, analyze DOM structure, score selector stability, extract themes, diff page versions, and export ready-to-install `.user.js` files. 100% client-side, single HTML file.