Local tools for people, CLI and IDE Agents
49 local tools across 11 categories in one free Apache 2.0 Windows app: PDF, PPT, image, audio-video, text, calculator, AI and hardware workflows. Files stay on your computer by default.
Built by Zihang Dong after work, now with 400+ GitHub stars and nearly one million views.
Version 2.0
ToolKnit Desktop v2.0 grew from one PDF problem into a free, open-source Windows toolbox. It runs locally by default, keeps files on your computer and exposes practical workflows to scripts and IDE Agents.
A focused home for 49 local tools, with category navigation, a unified output directory and backgrounds you can customize without changing the workflow.
Merge, split, rotate, encrypt, decrypt, compress and enhance PDFs locally, with page previews and precise page selection where the workflow needs it.
Convert and compress images in batches, stitch images or PDF pages into a long image, generate icons and extract reusable color palettes.
Convert, clip and inspect audio or video locally, detect BPM, export frames, create GIFs and transcribe media with an offline Whisper model.
Turn presentations into practical assets locally: convert PPT files to PDF or images, extract reusable media and generate AI-assisted outlines.
Format untidy text, measure words and reading statistics, and export offline transcription results as editable TXT, timestamped SRT or structured JSON.
Keep recurring calculations close at hand with focused tools for BMI, timestamps, mortgages, interest and secure password generation.
Inspect the machine that runs your workflows with focused hardware utilities for system information, storage health and practical device checks.
AI documents and tables now produce inspectable projects with stable control IDs, previews, dry runs, edits, undo and deterministic re-rendering.
Open source on GitHub
ToolKnit Desktop v2.0 is a free Apache 2.0 project for private local work and open collaboration. Download a release or follow development directly in the repository.