Frequently asked questions

Strictly speaking, all lossy compression discards some data — the trick is discarding only what your eyes won't miss. Use a modern codec at a conservative quality setting: in the Milzune compressor, that's the High Quality preset, tuned so the difference is imperceptible on normal screens while still cutting file size meaningfully.

Two practical tips: compress from the original file rather than an already-compressed copy, and avoid compressing the same file repeatedly — each generation loses a little more.

Email is the one place you need a hard ceiling, not just "smaller" — Gmail caps attachments at 25 MB and Outlook at 20 MB. Use a compressor with a target file size mode: in Milzune, switch to Target file size, enter 20 MB, and the bitrate is calculated to land under the limit.

Bonus for sensitive attachments: because Milzune compresses in your browser, the video isn't sitting on a converter site's server before you even hit send.

Yes — Milzune never adds a watermark, on the free tier or on Pro. The output file is your video, just smaller. Free-tier limits apply to file size (100 MB) and daily use (3 files), never to what the output looks like.

It depends on how efficiently the original was encoded. Phone footage and screen recordings are usually encoded generously and often shrink 60–90% at the Balanced preset with little visible difference. Files that were already tightly compressed (say, downloaded from a streaming platform) have less fat to trim.

Open the Milzune converter, drop in your MOV file (iPhone footage is the classic case), choose MP4 as the output, and click Convert Now. Files up to 100 MB are free, with no watermark and no account — and the conversion happens in your browser, not on a server.

Yes — WebM to MP4 is one of the most common jobs the converter handles. Browser-based screen recorders love outputting WebM, and plenty of players, phones, and editing suites still refuse to open it. Convert to MP4 and it plays everywhere.

No. Milzune runs entirely in your web browser — nothing to download, install, or update, and no admin rights needed on work machines. It works on Windows, Mac, Linux, and most modern mobile browsers.

Output formats are MP4, MOV, AVI, WebM, and GIF. Input is broader — the engine reads virtually anything FFmpeg can, which covers the formats cameras, phones, and screen recorders actually produce.

Yes — that's Milzune's entire reason for existing. Your video is processed on your own device using in-browser WebAssembly technology, so the file is never transmitted to any server. Watch your browser's network inspector while converting, or disconnect from the internet after the page loads: it still works.

The full explanation is on How It Works, and the formal commitment is in our Privacy Policy.

Nothing persists. The video exists only in your browser tab's memory while it's being processed; close or refresh the tab and it's gone. There's no server-side copy to delete because no server was ever involved.

The free tier is genuinely free: files up to 100 MB, three per day, no watermark, no account. Milzune Pro ($29, one-time) removes the size and daily caps and adds batch processing.

No. Pro is a single one-time payment — no recurring charges, no renewal, nothing to cancel. Details on the pricing page.