Positive / Negative / Neutral scores with confidence gauges.
Text to analyze
Paste text and run inference in a Web Worker. Models load from cache after the first visit and results stay on your device. The tool requires an initial, one-time download of a local processing engine (Web Worker) powered by Transformers.js. This may take a few moments depending on internet speed, but ensures zero server uploads and total privacy.
Conversions run in your tab with JavaScript — no desktop app required.
Files stay on your device during processing. We do not receive your uploads.
Heavy codecs and AI models run locally via Web Workers and WASM (FFmpeg.wasm, Transformers.js).
Paste text and run inference in a Web Worker. Models load from cache after the first visit and results stay on your device. The tool requires an initial, one-time download of a local processing engine (Web Worker) powered by Transformers.js. This may take a few moments depending on internet speed, but ensures zero server uploads and total privacy.
Model accuracy varies by language and domain. Very long inputs may be truncated. Not a substitute for professional advice. Processing is 100% offline in your browser — files never leave your device.
Yes. This tool is free convert online with no signup. Processing stays in your browser — no uploads.
You control quality settings. Choose higher quality for no quality loss when converting online.
Every conversion runs inside your browser tab using JavaScript and Web Workers. There is no background server queue and no account is required for core tools.
Your files are never uploaded to FreeConvertKit for processing. Originals, previews, and exports stay on your device unless you choose to download or share them yourself.
When codecs or AI models are needed, WebAssembly modules such as FFmpeg.wasm and Transformers.js execute locally — giving you desktop-class power with absolute file privacy.
Offline NLLB-200 translation — 100% on-device processing.
Shorten long text into clear summaries with local, private processing.
Keep a page range or export each page as its own PDF.
Trim bitrate or switch to mono for voice notes.