Audio and video conversion
Convert MP4 to MP3 in your browser. Batch up to 50 files; nothing is uploaded.
Drop in a file, pick a format, download. No account needed to start.
Drag files here, or click to select
- Files never leave your device
- Free and unlimited
- No sign-up, no watermark
Frequently asked questions
How do I convert MP4 to MP3?
Drop your MP4 files into the panel above and press convert. MP3 is already selected, and results appear in the grid — no upload, no account.
Is this tool free?
Yes — free and unlimited. No account, no watermark, no per-file charge.
Which formats are supported?
Each tool lists the formats it accepts under the drop area. Image tools take JPG, PNG and WebP; PDF tools take PDF files, while JPG to PDF accepts JPG, PNG, WebP and HEIC.
Can I process several files at once?
Image compression, resizing and JPG to PDF take up to 50 files per batch and download together as a ZIP. Splitting, deleting pages, merging and extracting work on the files shown in the panel — one PDF at a time where the tool is single-document.
Are my files uploaded anywhere?
No. Every step runs in your browser, so files never leave your device — you can verify it in the network panel.
Will compression reduce quality?
Compression re-encodes JPG and WebP at the quality you choose, so some loss is expected below 100%; PNG stays lossless. Merged, split and page-deleted PDFs keep their original content, and PDF tools that render or re-encode images say so in the result panel.