Combine and split
Add to pages
Theme
File names
IMG_2041.heic
IMG_2041.jpg
Language
Your files and these choices stay on this device.
Conversion settings
Your starting point for new files. You can still change anything before converting.
Convert to
No format matches.
This erases all saved settings, history and cached data, as if you opened the app for the first time.
Add images, audio, video and PDF: they are split by type and each group converts to its own format. ZIPs are unpacked.
200 files per batch and about 2 GB per file.
No. The conversion engine runs inside this tab and the result is written in this tab. There’s no upload, no account and no watermark, and closing the tab discards everything.
Because the engine running in your browser can’t do that conversion. It’s a smaller build of FFmpeg than the desktop one: some formats can be read but not written, such as AVIF or HEIC, and some videos use codecs it doesn’t include. The app marks this in the format list before you start, instead of failing halfway.
Yes. The advanced settings under each format cover output size, quality, frame rate, a maximum size per file in KB or MB, and metadata removal. Auto is right for almost everything. The maximum size applies to every file in the batch: files that already fit keep their quality, and for audio and video it’s approximate.
Yes. Drop or pick your files: they are split by type, and each group converts to its own format. Which output formats you can pick depends on the file and your browser, and some files can’t be converted at all.
Yes, if it’s compressed. ZIPs are unpacked automatically, so a folder compressed into a ZIP can be dropped whole and each file inside it goes to its own group.