Local-First Browser Toolkit

ASH TOOLS

A single workspace for everyday file tasks and developer utilities. Edit media, merge documents, run code, and chat with local AI models directly in your browser.

100% Local ProcessingNo Uploads RequiredWorks OfflineWebAssembly Powered

Start in 3 Steps

1. Pick a tool

Choose from media, docs, AI, or developer utilities below.

2. Add files or code

Drag files or paste snippets. Processing starts locally.

3. Export results

Download optimized outputs and keep working in-browser.

Media and Document Tools

Use these tools when you need to transform files quickly without cloud uploads.

🎬

Video Studio

Trim, crop, compress, and process videos locally with WebAssembly + FFmpeg.

✓ Trim and crop videos
✓ Multiple format support
✓ Batch processing
✓ Local-first workflow

Open Video Studio

🖼️

Image Editor

Edit, warp, and optimize images in-browser without file uploads.

✓ Perspective crop tools
✓ PNG, JPEG, WebP, HEIC
✓ Compression previews
✓ Offline-ready

Open Image Editor

📦

View and Zip Files

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

✓ ZIP archive creation
✓ Folder compression
✓ Drag and drop interface
✓ Batch packaging

Open ZIP Tool

📄

PDF Merger

Merge, reorder, and compress PDF documents securely offline.

✓ Multi-file merging
✓ Drag reordering
✓ Compression support
✓ Thumbnail previews

Open PDF Merger

🧠

WebLLM Studio

Run local AI chat sessions with custom context and prompts on-device.

✓ Context + prompt workflow
✓ Local WebGPU inference
✓ Private chat history
✓ PWA support

Open WebLLM Studio

Developer Tools

Build, test, and debug faster with in-browser utilities powered by workers and WASM.

⚡

Speed Runner

Benchmark JavaScript execution and memory with visual performance output.

✓ Execution time analysis
✓ Heap tracking
✓ Visual charts
✓ Worker isolation

Open Speed Runner

Regex Generator

Generate optimized regex patterns from examples using Rust-powered logic.

✓ Example-based generation
✓ Rust/Grex engine
✓ Instant preview
✓ Offline processing

Open Regex Tool

🧪

Code Sandbox

Run and test multiple languages in an isolated browser execution environment.

✓ Multi-language support
✓ WASI runtime
✓ stdin support
✓ Copy output tools

Open Code Sandbox