❓ Frequently Asked Questions
Common issues and solutions when using DevLab.
📌 Why does conversion take long?
Processing uses your device's CPU. Larger files take longer to convert.
🚨 Stuck at 'FFmpeg loading…'?
On first launch, FFmpeg WebAssembly files are fetched and cached in memory. Slow connections can delay this. Try refreshing the page.
🔒 Is my file uploaded to the internet?
No. Everything happens in your browser. No data is sent to any server or external service.
📱 Does it work on mobile?
Mobile browsers may perform worse. For stability, a desktop browser is recommended.
🎞 Conversion stopped or the progress bar froze—how to fix?
Your browser memory may be full. Refresh and try again. Chrome tends to handle large files better.
🖥 Which browsers are supported?
Chrome, Edge, and Brave work well. Safari may have reduced WebAssembly performance.
🔌 Is the GPU used?
No. Browser-based FFmpeg uses only the CPU; GPU acceleration isn't supported.
🧩 Can other formats (GIF, MP3, etc.) be added?
Yes. New tools can be added by adjusting FFmpeg command parameters while keeping the same structure.
🧠 Access to source code or docs?
Coming soon on GitHub. DevLab is designed with a modular, extensible architecture.