Compress Video for WhatsApp
How to finish the file
- 01
Open FastEdit
Go to app.fastedit.net on your phone or computer. No app to install; it runs in Safari or Chrome on mobile too, though large encodes are easier on desktop.
- 02
Load your video
Drag and drop or tap to select your video. Works with supported video formats such as iPhone MOV, Android MP4, and WebM. The file stays on your device.
- 03
Choose a size target
Use the 16MB preset as a conservative target, or enter the limit shown by the WhatsApp client and send method you actually use. FastEdit estimates bitrate and reports the encoded size.
- 04
Trim to the key moment
Trim to the essential part. At a fixed size target, shorter duration leaves more bitrate for motion and detail.
- 05
Export as MP4
Export as MP4 with H.264 for maximum WhatsApp compatibility. Then share the file directly to WhatsApp.
Benefits
- Fit-to-size targets a chosen budget and shows the actual result before you try to send it.
- Control duration, dimensions, and bitrate before WhatsApp applies any additional processing for the selected send method.
- Works directly on your phone browser, compress and send without transferring to a computer.
- No upload to any third-party server. Personal videos stay private on your device.
- Trim before compressing to maximize quality for the part that matters.
Compression Tips
- Do not treat 16MB as a universal WhatsApp rule. Gallery media, documents, Status, and business APIs can use different constraints.
- At a fixed file-size budget, duration and audio consume part of the available bitrate. Shortening the clip usually preserves more visible detail than lowering bitrate alone.
- Use MP4 with H.264 when broad phone playback matters, then verify the exported file in the target WhatsApp client.
- If text or UI appears in the video, reduce dimensions cautiously and inspect small lettering before sending.
- When WhatsApp accepts the original as a document, that route may preserve more quality than sending it as gallery media, but the recipient experience differs.
Shrink the file, keep the quality in sight, and never hand over the original.
Compress in FastEdit