Video Merger

ViralMint merges up to 10 clips into one video on your own machine — mismatched resolutions and aspect ratios are normalized automatically, with an optional crossfade between cuts.

Free and unlimited — no account, no watermark, and the file never leaves your browser. Big files and batch runs are faster in the desktop app.

Why ViralMint for this

01

Mismatched clips, handled

Phone clips, screen recordings and downloads never share a resolution. ViralMint normalizes every clip to the target aspect — 9:16, 16:9, 1:1 or matched to your first clip — so the merged video plays as one piece instead of jumping between frame sizes.

02

One merge, every platform

The bundle option renders the same merge three times — 9:16 for TikTok and Reels, 16:9 for YouTube, 1:1 for feeds — and hands you a ZIP with all three files named per platform.

03

Local files stay local

Merging runs on your own CPU with FFmpeg. Nothing uploads, there's no queue, no watermark, and a 4K merge is limited only by your disk speed.

How it works

  1. Open Merge Clips

    Launch ViralMint and open Tools → Merge Clips.

  2. Add 2-10 clips in order

    Drop in files or pick from your ViralMint library — the order you add is the order they play.

  3. Pick aspect and transition

    Choose the output aspect (or auto-match the first clip) and hard cuts or crossfade.

  4. Merge

    FFmpeg normalizes and stitches locally; the finished mp4 (or 3-aspect ZIP) lands in your library.

Frequently asked

How do I merge videos with different resolutions?

Just add them — ViralMint re-encodes each clip to the target resolution and aspect ratio before stitching, using center-crop so nothing letterboxes unexpectedly. The output plays as one consistent video, not a slideshow of frame sizes.

Will there be a watermark?

No. The merge runs locally on your machine with FFmpeg — there's no watermark, no upload, and no subscription. It's priced as a small flat per-merge fee from a prepaid balance, not a monthly plan.

Can I add transitions between clips?

Yes — choose a crossfade and ViralMint inserts a dissolve at every cut. Hard cuts remain the default because they're what short-form pacing usually wants.

Can I export the merged video for TikTok, YouTube and Instagram at once?

Yes. The 'all platforms' bundle runs the merge at 9:16, 16:9 and 1:1 and delivers a ZIP with the three files — one merge, every aspect your platforms need.

Get ViralMint

The Video Merger ships inside the free ViralMint desktop app — no subscription, no watermark, no per-minute cap. Download once, use on as many videos as you want.

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