video too large for WhatsApp
WhatsApp's 100MB media cap blocks bigger files. Use Video to MP3 to bring your video under the limit while keeping it readable.
Most people hit this exact problem at least once: a video just over the WhatsApp attachment limit, and you have to send it now.
WhatsApp's hard cap is 100MB per outgoing message. Anything bigger gets rejected — sometimes silently, more often after you've waited 30 seconds for the upload bar to crawl. The fix is to bring the video below that threshold before you hit Attach.
Try it now: Video to MP3 — Everything happens locally in your browser — your file never leaves your device.
Why this happens
Videos grow for predictable reasons — embedded images at full camera resolution, fonts shipped twice, scanned pages saved at 600 DPI, video clips that were never meant for email. The original was fine for archiving, but it isn't shaped for email. The trick is the order of steps.
How to bring a video under 100MB
- Open Video to MP3 in any modern browser. Nothing installs.
- Drag the video onto the drop zone. Multiple files work too; Video to MP3 processes them in a single pass.
- Pick a compression preset. "Balanced" is the right answer 95% of the time — visually identical output, file size cut by 50–80%.
- Wait for processing — usually under five seconds for a video smaller than 50MB.
- Download the result. It lands in your default downloads folder under the original filename, suffixed.
- Attach the smaller version to WhatsApp and send. The size badge in the attachment row should now read well below 100MB.
If you have a stack of videos to send to the same person, drop them in together — Video to MP3 handles a batch in one click, then you attach the whole folder.
What if it's still too big?
A few videos resist compression — usually because they're already aggressively compressed, or they're video / audio at high bitrate. Two reliable next moves:
- Trim or split. If the video is content-rich, sending half today and half tomorrow often beats forcing it into one attachment.
- Switch to a cloud link. Google Drive, OneDrive, Dropbox, and WeTransfer all give you a copy-paste link that bypasses every mail provider's cap.
Try it now
Everything happens locally in your browser — your file never leaves your device.
Frequently asked questions
Does Video to MP3 upload my video to a server?
No. Video to MP3 runs entirely in your browser using WebAssembly. The video never leaves your device — there is no server to send it to.
What's the maximum I should attach to WhatsApp, in practice?
Stay 10–15% under the hard cap. WhatsApp's 100MB is the wire limit, but base64 encoding inflates the body by ~33%. Headroom prevents the "rejected after 30 seconds" failure mode.
Is there a way to do this from my phone?
Yes — open Video to MP3 in mobile Safari or Chrome and drop the video from your photo library or Files app. The flow is identical to desktop, just with bigger taps.
Will the recipient be able to tell the video was compressed?
Usually not. The "Balanced" preset on Video to MP3 targets visually indistinguishable output. Only a side-by-side pixel comparison would reveal the difference, and recipients almost never do that.
Related guides
- Compress a video to under 100KB (the toughest size target)
- How to convert a video on Android without installing an app
- Video to MP3 for a fast-loading website
- How to make a video under 1MB without ruining quality
- audio file too large for WhatsApp — the WAV to MP3 fix in under a minute
- string too large for WhatsApp — the Image to Base64 fix in under a minute
Ready to try it?
Use the tool: Video to MP3. Runs entirely on your device using open web standards.
Last reviewed May 2026. File-size limits, portal requirements, and software defaults change over time — always verify with the destination platform before uploading time-sensitive documents. References to third-party services and products are for descriptive purposes only and do not imply any partnership or endorsement.