22 September 2026
Support
Runs entirely on your local machine. No server latency, no network transfer limits.
convrtr is an offline-first instrument. Conversions happen inside your browser process using WebAssembly compiled from upstream C, C++, and Rust libraries, Web Workers for multi-threading, and hardware-accelerated WebCodecs. Your files never leave your device memory.
Supported browsers and hardware capabilities. Modern standards for high-performance audio and video.
convrtr supports modern Chromium browsers (Chrome, Edge, Brave, Opera), Firefox, and Safari. Multi-threaded codecs like AVIF and JPEG XL utilize SharedArrayBuffer and WebAssembly SIMD. If a converter reports missing codec support, ensure your browser is up to date with hardware acceleration enabled.
Docked Side Panel, Quick Popup, and Viewport Capture. Native browser integration without server uploads.
The convrtr Chrome Extension (Manifest V3) brings the full 200-tool suite directly into your browser workflow. Use the Side Panel dock to convert files while you browse, press Command+Shift+Comma (Ctrl+Shift+Comma) for the Quick Popup, or press Command+Shift+S to capture visible web pages into the converter.
Install convrtr from the Chrome Web Store ↗ or review the full specifications at /extension.
Handling high-resolution media and batch jobs. Governed by local RAM rather than arbitrary limits.
Because there are no server queues or cloud bandwidth bottlenecks, file size limits are determined strictly by your computer's available memory. For gigabyte-scale videos or massive batches, closing unused browser tabs ensures maximum memory headroom for the Web Worker pool.
Get assistance or report a problem. Direct issue tracking with the engineering team.
Encountering an unexpected format failure or conversion artifact? Report the issue directly at https://github.com/mreshank/convrtr/issues ↗ with the input file format, browser version, and console log output, or visit our /feedback page to submit diagnostic details.