Free Video Tools

Q: Are these video tools free?

Yes. Every tool in the LK Forge Video suite is completely free with no account, no payment and no usage cap. There is no watermark on the output and no daily limit on how many files you convert or trim.

Convert to MP4 — plays everywhere

MOV to MP4

Convert QuickTime MOV to a playable MP4.

MKV to MP4

Convert Matroska MKV to a playable MP4.

WebM to MP4

Convert WebM to MP4 for iPhone and editors.

AVI to MP4

Convert legacy AVI to a modern, smaller MP4.

GIF to MP4

Shrink an animated GIF into a small MP4.

GIF to Video

Convert an animated GIF into a video file (MP4).

Make a GIF

MP4 to GIF

Turn an MP4 clip into a crisp animated GIF.

Edit & other formats

MP4 to MOV

Remux an MP4 to MOV for Apple apps — lossless.

Video Trimmer

Cut a clip out of any video by start and end time.

Private, in-browser video conversion

Most online converters upload your video to a server, queue it, watermark it, or cap the file size. These don’t. The moment the page loads, everything happens locally: you pick a file, it’s read straight into a video engine running inside your browser tab, and the converted result appears for download — the video data never leaves your device. That makes these tools safe for personal recordings and work files, and it means there is no upload wait and no sign-up. The trade-off is that your own device does the work, so very large or long clips take longer than a big server would; for those, trim to what you need first with the Video Trimmer.

Under the hood every tool runs ffmpeg compiled to WebAssembly (ffmpeg.wasm) — the same engine behind most desktop video software, running as code inside your browser rather than on a remote machine. That is what lets the suite convert between real containers and codecs instead of just renaming a file: converting MOV, MKV, WebM and AVI into an MP4 that plays on phones, editors and social sites; turning a clip into an animated GIF or shrinking a GIF back into a small MP4; and remuxing MP4 to MOV for Apple apps without re-encoding.

Because the whole pipeline is client-side JavaScript and WebAssembly, there is nothing to install, no extension to add and no key to paste — open a tool, drop in a file, and download the result. The first conversion in a session loads the ffmpeg engine, so it may take a few seconds; after that, repeat conversions are quick. Everything is free, private and works on desktop, tablet and mobile, with the only real limit being the memory available on the device doing the work.

Frequently Asked Questions

Are these video tools free?

Yes. Every tool in the suite is completely free with no account, no payment and no usage cap. There is no watermark on the output and no daily limit on how many files you convert or trim.

Is my video uploaded anywhere?

No. All conversion and trimming happens locally in your browser using ffmpeg compiled to WebAssembly. Your file is read straight into the page and processed on your own device — the video data is never uploaded to a server, so it is safe for personal recordings and work files.

What formats are supported?

You can convert MOV, MKV, WebM and AVI to MP4, turn an MP4 into an animated GIF, convert a GIF into MP4 or another video, remux MP4 to MOV, and cut a clip out of any video with the Video Trimmer. Because ffmpeg does the work, most common container and codec combinations are handled.

Is there a file-size limit?

There is no hard file-size cap imposed by LK Forge. The practical limit is your device's memory, since the whole file is processed in the browser tab. Very large or long clips take longer and use more RAM, so for big videos it helps to trim to the part you need first with the Video Trimmer.

Does it work on mobile?

Yes, the tools run in any modern mobile browser. Phones and tablets have less memory than a laptop, so very large videos may be slow or run out of memory — for heavy files a desktop browser is more reliable.