Tools that open in mainland China
379 tools, all reachable directly, all usable without an account.
Drag a curve to shape CSS easing functions with side-by-side preview
Draw architecture diagrams and UML for free, save files locally
Compute MD5, SHA, Bcrypt and dozens of hashes locally in the browser
Paste a shell command and get each option explained from the manual
Archive3D successor; interior furniture and decor models downloadable without account.
Drag a .gcode file in to inspect layers and analyze time and filament use locally.
Drop a glTF/GLB to inspect structure, textures and size with optimization hints; no account.
Run glTF-Transform in the browser: dedupe, simplify, Draco-compress and convert locally.
Generate free QR codes for URLs, WiFi and contact cards
Multi-language image text recognition with PDF conversion
Merge, split, compress and convert PDFs in one place
Restore, colorize and upscale old photos, with a free quota
Paint to remove clutter, export at 720p free or unlock 4K with login
Typing practice that adapts to your weak keys, no login needed
Turn a Markdown outline into a collapsible mind map in one click
A web component for embedding 3D models, with editor and samples
An adjustable ambient sound generator that plays without login
Turn a JSON sample into model classes in many languages
A minimal infinite whiteboard for sketches and prototypes
A classic anime upscaler and denoiser, free with Chinese support
Upload an image to read its QR code and check its safety
