Repository Index

Collection of handy online tools for developers, with great UX.

• vuejs
• tools
• tool
• converter

💾 Self-hosted online file converter. Supports 1000+ formats ⚙️

• bun
• elysia
• file-conversion
• file-converter

Utility to convert between various subscription format

• clash
• clashr
• surge
• quantumult

The next-generation file converter. Open source, fully local* and free forever.

• conversion
• ffmpeg
• wasm
• svelte

🛏 An HTML to Markdown converter written in JavaScript

• javascript
• html
• markdown
• html-to-markdown

⚙️ Convert HTML to Markdown. Even works with entire websites and can be extended through rules.

• go
• golang
• html
• html-to-markdown

Convert HTML to Markdown with PHP

• php
• markdown
• commonmark
• html

👑 A tiny yet powerful tool for high-performance color manipulations and conversions

• color
• parser
• converter
• hex

kramdown is a fast, pure Ruby Markdown superset converter, using a strict syntax definition and supporting several common extensions.

• kramdown
• ruby
• markdown
• html

Self hosted file converter and compression tool for images, video, audio, json, excel and more. Supports over 3,000 conversions!

• convert
• docker
• python
• file-converter

C# .NET Core wrapper for wkhtmltopdf library that uses Webkit engine to convert HTML pages to PDF.

• net-standard
• wkhtmltopdf
• html
• pdf

Turn messy, real-world HTML into clean Markdown, from every major language.

• html-converter
• markdown-converter
• rag
• text-extraction

ReverseMarkdown.Net is a Html to Markdown converter library in C#.

• converter-library
• html
• markdown
• netcore

ZMarkupParser is a pure-Swift library that helps you convert HTML strings into NSAttributedString with customized styles and tags.

• html-renderer
• nsattributedstring
• uikit
• uilabel

The universe in numbers. Free, open-source calculators for everything countable.

• astro
• bun
• calculator
• calculators

📄 Office / PDF / iWork / CAD / 3D / RAW / 360° 🔒 Browser-local preview & conversion 🤖 Agent CLI with OCR, structured text & layout extraction ⚡ Rust + WebAssembly 🧩 Vue 3 integration. Open-source, local-first. Your files, your device.

• 3d-viewer
• cad-viewer
• document-viewer
• epub

ArcGIS JSON to GeoJSON

• arcgis
• geojson
• arcgis-json
• vuejs

The Design Tokens Multitool. CLI and go library; LSP and MCP; Generator and converter

• cli
• design-systems
• design-tokens
• go

Converter from BBCode to HTML

• bbcode
• converter
• html

CSS to Master Styles Converter

• css
• html
• master
• styles