Localism
Your files, processed on this device.
Pick a tool, drop a file. Everything runs in your browser, no upload, no server, no account.
Zero Cloud Dependency
Compute locally. Rely on no one.
Cloud tools hold your files hostage and charge you for their server costs. Localism turns your own browser into a high-performance engine, completely offline, private, and unlimited.
Sandboxed in your browser.
No file uploads, no remote storage, no tracking of documents. Everything executes in your browser’s memory and vanishes when you close the tab.
Inspect Network Tab : 0 File Uploads
Zero upload, zero wait.
Why upload a 1GB video just to trim 5 seconds? Process at raw RAM and SSD speed, on-device, in a Web Worker.
Client-Side WASM Engine
No paywalls on your own compute.
Cloud SaaS charges subscriptions because they pay for servers. Your device does the work, Localism is free.
Works in Airplane Mode
Client-Side Integrity
Frequently asked questions
Every tool runs in a Web Worker or WASM thread inside your browser. Files are streamed into memory, transformed, and returned as a download. Open DevTools → Network tab while processing and you’ll see zero upload requests.
Nothing is stored. Results exist only as in-memory blobs until you download them, and closing the tab wipes everything. There is no server, no database, and no cloud storage to hold anything.
We use privacy-friendly, cookieless Cloudflare Web Analytics to measure site traffic without tracking individual users or collecting personal data. No cookies, no fingerprinting, and zero file or document data ever leaves your device.
Everything. Image processing (Canvas), video (FFmpeg WASM), PDF (pdf-lib), hashing (Web Crypto), watermarking and EXIF scrubbing, and background removal (ONNX WASM). No backend exists.
After the page has loaded and the FFmpeg/ONNX cores are cached, the entire suite works offline. No account, no install, no upload, just your browser.