Free Online Video Converter — No Limits, No Watermark

TapirConvert is a free online video converter built to get the job done fast: conversion starts the instant you drop a file, with no signup, no watermark, and no file size limits. The engine runs locally in your browser — which is why there's no upload queue to wait through, and why your files never leave your device.

Pick a conversion, drop your file, download the result. That's the whole workflow.

What You Can Convert

TapirConvert covers both directions: use it as a video to MP4 converter to make any file play everywhere, or as a video to MP3 converter when you only need the sound.

• Video to Audio — Extract the audio track from any video format and save it as an MP3.
• MP4 to MP3 — Extract the audio track from any MP4 video and save it as an MP3. Perfect for music, podcasts, and voice recordings.
• MOV to MP4 — Convert iPhone and QuickTime videos into the universally compatible MP4 format.
• AVI to MP4 — Bring older AVI files into the modern era so they play everywhere.
• MKV to MP4 — Repackage MKV videos as MP4 for smooth playback on phones, tablets, and smart TVs.
• WEBM to MP4 — Turn web-optimized WEBM videos into MP4 files you can share and edit anywhere.

Free AI Tools for Video and Photos

Changing the format is only half of what you can do here. The same browser engine also runs AI models locally, so you can repair, enlarge, and edit media without a subscription, a watermark, or an upload — all four tools below are free and unlimited.

AI Video Upscaler — Upscale video online for free: turn 1080p into true 4K, or sharpen old, low-resolution footage until it looks watchable again. Useful for anything shot on an old phone, ripped from a DVD, or downloaded years ago at a resolution that no longer holds up on a big screen.

AI Image Upscaler — Enlarge photos without losing quality: a small, blurry, low-res image becomes a sharp, high-resolution one in seconds. Handy for old family scans, product shots that arrived too small to print, and screenshots you need at a bigger size.

AI Object Remover — Remove unwanted objects, people, or text from a photo: paint over whatever is in the way and the AI fills the gap with matching background. Good for clearing strangers out of a holiday shot or deleting a distracting sign, pole, or timestamp.

AI Photo Colorizer — Colorize black and white photos automatically: faded, sepia, or grayscale pictures get realistic color while the original detail stays untouched. Built for old family portraits and archive photos you want to see the way they were taken.

More Conversions

Going the other way, out of MP4 and into another format?

• MP4 to MOV — Rewrap MP4 into Apple's QuickTime format for Final Cut Pro and iMovie, with no quality loss.
• MP4 to AVI — Convert MP4 into AVI for DVD players, DVRs, and other hardware that still expects the old format.
• MP4 to MKV — Repackage MP4 into MKV for Plex, Jellyfin, and media libraries that expect Matroska.
• MP4 to WEBM — Re-encode MP4 into WEBM (VP9) for web embeds and platforms that expect a smaller, browser-native format.

Need to make a file smaller instead of changing its format?

• Compress Video — Reduce video file size online with a free video compressor for MP4, MOV, AVI, MKV and WEBM.
• Compress MP4 — Shrink MP4 files with a free MP4 compressor that keeps quality — no watermark, no size limit.

No Install, No Limits, Any Device

Cloud converters cap uploads at 100 MB to 1 GB and make you wait through the upload before anything happens; desktop video converter software needs installing, updating, and often ships with adware. TapirConvert has no size cap, no watermark, and no upload step, so a 2 GB file starts converting immediately. It runs in any modern browser on Windows, Mac, Linux, ChromeOS, and Android — no codec packs, no app store, nothing left running in the background.

How This Free Video Converter Works

TapirConvert runs FFmpeg — the same industry-standard engine behind professional tools like HandBrake — compiled to WebAssembly so it executes entirely inside your browser:

1. Choose your conversion, e.g. MOV to MP4 or MP4 to MP3
2. Drop your video file onto the converter (or click to browse)
3. The file is processed locally — nothing leaves your computer
4. Download your converted file

Because there's no upload step, a 2 GB file starts converting immediately instead of spending 15 minutes crawling up your connection first.

Frequently Asked Questions

Is this video converter really free?

Yes, completely. Because your device does the processing, we don't pay for conversion servers — so we don't need subscriptions, watermarks, or "premium speed" upsells to cover costs.

Do my videos get uploaded anywhere?

No. All conversion happens inside your browser using WebAssembly. You can even disconnect from the internet after the page loads and the conversion will still complete.

Is there a file size limit?

No hard limit. Cloud converters cap uploads at 100 MB – 1 GB to control server costs. Here, the only constraint is your device's available memory — multi-gigabyte files are fine on a typical laptop.

What video formats are supported?

You can convert MOV, AVI, MKV, and WEBM to MP4, or turn any of those formats into MP3 — including MP4 to MP3. More formats are on the way.

Can I convert video to MP3?

Yes — the converter above works as a general video to audio converter: drop in an MP4, MOV, MKV, AVI, or WEBM, choose MP3, and you get the audio out in one step. Whatever codec the video carries (AAC, AC-3, MP3), the result is a clean MP3 — and the file never leaves your device.

Can I improve video quality or increase resolution?

Yes, and it's free with no sign-up. The AI video upscaler enhances video quality online: it rebuilds detail instead of just stretching pixels, so a 480p or 720p clip can be upscaled to 1080p or 4K and old, soft footage comes out sharper. It runs on your device like everything else here, so there's no upload and no watermark on the result.

Can I edit photos here too, or only video?

Photos too, with three AI tools that are free and unlimited: upscale an image to make a small or blurry photo sharp and print-ready, remove an object or person you don't want in the frame, and colorize a black and white photo so an old family picture gets realistic color back. All three work in the browser, with no account and no watermark.

Is it safe to convert videos online?

With traditional converters, "safe" depends on trusting a stranger's server with your file. TapirConvert removes the question entirely: your video never leaves your device, so there is nothing to store, scan, or leak.

Do I need to install a video converter app?

No. TapirConvert replaces desktop video converter software entirely — open the site, convert, close the tab. Nothing is installed and nothing runs in the background.