Online Video Converter

Switch between MP4, AVI, MKV, and more

Size up to 100 MB

By uploading a file, you agree to our Terms of Use and acknowledge our Privacy Policy

How to change video format

  • download PDFDownload your first file for free. To continue using PDF Guru, choose one of our subscription plans.
  • download PDFUpload your video file into the window.
  • create PDFPick a video format or switch to 'Audio' for sound only, then start the conversion.
  • upload pdf fileWhen it's ready, download the converted file to your device.

Trusted and certified by industry leaders

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Why choose our video converter

  • benefit 1

    Wide format support

    Our video format converter handles MP4, AVI, MKV, MOV, WebM, WMV, and FLV, so you don't have to look for a separate tool for each.
  • benefit 2

    Audio extraction

    You don't need a separate audio tool either! Convert any video straight to MP3, WAV, AAC, FLAC, M4A, or AIFF, sound only.
  • benefit 3

    Original quality

    You shouldn't have to choose between compatibility and quality. When you convert video here, you get both.
  • benefit 3

    Fast processing

    Online video converting is fast, even on big files, with an estimated time shown so you know how long it takes.
  • benefit 1

    File storage

    Every file lands in your dashboard, so you can find it later or share it straight from there in one click.
  • benefit 2

    Security-first approach

    We use industry-standard security measures to keep your files protected from upload, through storage, to download.

A reliable way to convert video files

Most converters make you choose between quality and convenience. This video format converter gives you both. Drop in a file, pick any format across video and audio, and download a result that stays true to your original. Nothing to install, large files move as fast as small ones, and every conversion saves to your dashboard to share or download again. It all keeps getting faster as we refine the tool.

Choose the right video format

  • MP4

    The safe default. Plays on almost any browser, phone, TV, or social platform, so reach for it when you're not sure.
  • WebM

    Open-source and made for the web. Small, fast-loading files that stream smoothly on sites and pages.
  • MOV

    Apple's native format. Best for Macs and iPhones, and the editors built for them like Final Cut and iMovie.
  • MKV

    An open container that packs high-quality video, several audio tracks, and subtitles into a single file.
  • AVI

    An older format that Windows software and legacy players still handle well. Larger files, but broad support.
  • WMV

    Microsoft's own format and the most compatible choice on Windows PCs and older media players.
  • FLV

    Flash video, useful for older web players and embedded clips from the Flash era.

Why convert your video

Convert videos into formats that are easier to send, upload, and open.
  • Use a more compact format when a video is too large for email or messaging
  • Convert uncommon file types before sending them to clients or teammates
  • Prepare recordings for upload to cloud storage, collaboration tools, or websites

What users are saying about our online tool

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Convert video online in no time

Frequently asked questions

  • What is a video converter?

    A video converter is a software program or an online tool that reformats your video so it plays where you need it. Say you shot footage on your phone but need a format your laptop can edit, or a downloaded clip won't open on your TV. Reformatting the file is what a converter fixes.

  • Is any video converter safe?

    Yes, video converters are safe if they handle your files responsibly. Check reviews, reach out to support, and look at how a tool treats your uploads. We built our video format changer with exactly that in mind, so your files are encrypted and handled to strict security standards.

  • Which video formats can I convert?

    You can convert nearly all standard video and audio formats. For video, that's MP4, AVI, MOV, MKV, WMV, WebM, and FLV. For audio, convert to MP3, WAV, AAC, FLAC, M4A, or AIFF. Online video conversion lets you switch between them based on what fits your device or platform.

  • Will the video quality be preserved after conversion?

    Video quality is usually not fully preserved when converting a video using lossy compression, though the loss is often too small to see. We keep it as close to the original as we can, so the result really comes down to your source file. Start with something sharp, and your converted video will look just as good.

  • Are there any file size or length limits?

    File size and length limits depend heavily on the specific tool you are using. PDF Guru takes files up to 100 MB, which covers most standard video files with ease.

  • Is a movie converter the same as a video converter?

    Yes, a movie converter is essentially the same thing as a video converter. Both terms describe the same tool: one that converts a video file to another format, like MP4, AVI, FLV, or MKV. "Movie" usually just means a longer video, but the tool and the result are identical.

  •  How to fix a corrupted video file?

    A corrupted video file is one where the underlying data has been damaged or left incomplete, usually after a failed download or transfer. A converter isn't a repair tool, so it can't rebuild data that's genuinely lost. It can help, though, when the real issue is the container or codec, which is easy to mistake for corruption. Converting to a format like MP4 re-encodes those parts and often gets the file playing. If that doesn't work, the file is likely truly damaged and needs a dedicated repair tool.

  • How do I cancel?

    You can cancel anytime from your account settings or by contacting our support team. Your access stays active until the end of the current billing period.

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