Convert video
Convert any video format (MP4, MOV, WebM, MKV, AVI…) to MP4, WebM, MKV, MOV or TS. Adjust quality or set the exact target size in MB.
Select videos
or drag and drop your videos here (MP4, MOV, WebM, MKV, AVI, TS, 3GP…)
How to convert videos on JapalTools
The converter processes frames and audio directly in your browser using the WebCodecs API and hardware decoding. Your files never travel over the internet or get stored on servers.
Select or drag one or more video files from your device.
Choose the output format (MP4, WebM, MKV, MOV, TS) and select whether to convert by quality or by setting a target size in MB.
Click Convert video and instantly download your converted file or a ZIP if you processed multiple files.
Why use JapalTools?
Your files never leave your device
Everything happens in your browser. Documents are never uploaded to any server, so you can use it with payslips, contracts or ID documents.
Free, no sign-up and no watermarks
You don't need an account or to leave your email, and nothing is added to the result.
Works on any device
Computer, tablet or phone, with an up-to-date browser (Chrome, Edge, Firefox or Safari). Nothing to install.
Frequently asked questions
MP4 (H.264 + AAC) is the most recommended as it plays on any phone, computer, TV and social network. WebM is ideal for the web, MKV for maximum versatility and MOV for Apple environments and editing.
Switch to “By final size in MB” mode and enter the desired size (for example, 16 MB for WhatsApp or 25 MB for email). The converter will calculate the bitrate to fit that limit without losing sharpness.
You can upload virtually any common video format: MP4, MOV, WebM, MKV, AVI, WMV, FLV, 3GP, M4V, TS, MTS, OGV and more.
Completely. The conversion runs 100% locally in your own browser. The video is never uploaded to the internet or routed through external servers.