All Converter Pro
Convert Video Files Online
Convert videos between MP4, WebM, MOV, AVI and MKV online for free. Fix videos that won't play, prepare clips for web and social media. No signup.
About this Video Converter tool
The video converter changes a video's format so it plays where you need it: MP4, WebM, MOV, AVI and MKV are supported in both directions. The overwhelmingly safe choice is MP4 (H.264) — it plays on every phone, TV, browser and editing app made in the last decade, which is why "convert to MP4" fixes most "this video won't play" problems, whether the source is an old AVI, an iPhone MOV, or an MKV download. WebM is the alternative when the clip is embedded on a web page. Conversion re-encodes the video, which takes roughly as long as the clip's duration and applies modern efficient compression — old formats often shrink substantially at the same visible quality.
How to use Video Converter
- Open the tool and add your file, text or values.
- Review the available options such as page range, output format, quality, password or language.
- Start the process and keep the browser window open until it finishes.
- Download the result and continue with a related tool if needed.
Useful tips
- For scanned PDFs, tools with OCR support run text recognition automatically where possible.
- For large files, use compression tools before sharing by email or uploading to portals.
- For best results, upload clean files with the correct extension and avoid corrupted documents.
Frequently asked questions
Which format should I convert to?
MP4 unless you have a specific reason otherwise. It plays on effectively every device and platform — phones, TVs, browsers, editors, WhatsApp, YouTube. WebM is worth choosing only for videos embedded directly in web pages.
Why won't my video play on my phone or TV?
The container or codec is not supported by the device — common with AVI, MKV and some MOV files. Converting to MP4 (H.264) resolves this in almost every case.
Does converting reduce video quality?
Re-encoding applies compression, but at the settings used the difference is generally not visible. Converting cannot improve quality — a blurry source stays blurry.
How long does conversion take?
Roughly comparable to the video's duration, depending on resolution — a 5-minute clip takes a few minutes. Keep the browser tab open until the download appears.
How large can my video file be?
Uploads up to 512 MB are supported, which covers most phone recordings and downloaded clips. For larger files, trim or compress the video first.
Is the converter free and private?
Yes. Free with no account, and uploaded videos are stored only temporarily under random names before automatic cleanup.