I got tired of opening random online tools that either track everything or send my data to some server just to format JSON or check if a model fits on my GPU.
So I built UsefulAtlas — a collection of browser-based developer tools and AI hardware calculators that run fully client-side where possible.
What it currently has
Coder Box
JSON formatter/minifier, Base64, UUID generator, hash tools, JWT inspector, text cleaner — all local in the browser.
AI / Local LLM stuff
- VRAM / hardware checker (can this model actually run on my GPU + RAM?)
- PSU wattage calculator for single and multi-GPU AI builds
- Local vs Cloud cost / TCO calculators
- A few other cost and ROI tools for API usage and automation
Also
Image resize/compress/convert and a PDF toolbox that never uploads your files.
Nothing requires an account. Most tools process everything in your browser. I tried to keep the assumptions visible so you can actually trust the numbers.
I’m currently adding more local image/PDF utilities and expanding the AI hardware side.
Would love feedback from people who actually run local models or just want quick, private tools without the usual clutter.