Compress video for email and messaging
Choose a target below the attachment limit for your email provider, WhatsApp conversation or other sharing workflow. MedleyKit uses that size to plan the MP4 bitrate before encoding begins.
Compress video for email, WhatsApp or a target size
Reduce an MP4 to 8MB, 10MB, 25MB or another practical size for email and messaging. Choose a target, get a resolution recommendation and export locally without uploading the video.
Compress video to a practical file size without uploading
MedleyKit calculates an audio and video bitrate budget from the size you choose, then compresses the file on your device. Use one page for common attachment limits and custom targets instead of sending your video to a remote server.
Set an 8MB, 10MB, 25MB or custom target
Use the size control for a common limit or enter another practical target. Audio space and MP4 container overhead are included in the estimate, while the remaining bitrate budget is assigned to the picture.
Balance resolution, quality and file size
Auto mode recommends a smaller resolution when the available bitrate is too low for the original dimensions. If the first result misses the target, MedleyKit can make one focused correction instead of repeatedly reducing quality.
Local processing
Your source video and generated results are processed on this device instead of being uploaded to a remote media-processing server.
Focused tools
Each editing step has its own dedicated page, keeping the controls, choices and interactions simple.
Continuous workflow
Pass a local result directly to another compatible tool and combine multiple editing steps in the same browser on this device.
Video compression questions
Practical answers for reducing a video before email, messaging or another size-limited upload.
How do I compress a video for email?
Choose the video, set a target below your email provider's attachment limit and keep Auto resolution selected unless you need specific dimensions. MedleyKit estimates a bitrate budget, creates an MP4 locally and shows whether the result is within the selected target before you download it.
How can I compress an MP4 to 10MB or 25MB?
Set the output-size control to 10MB, 25MB or another value, then review the recommended resolution and start compression. The target is an estimate because audio, container overhead, source complexity and the browser encoder all affect the final file size.
Can I compress a video for WhatsApp?
Yes. Choose a target that fits the way you plan to send the file, then export the smaller MP4. WhatsApp may apply its own processing after upload, so keep the MedleyKit result slightly below any strict size limit shown in your app.
Can I reduce a video for Discord?
Yes. Check the upload limit shown for your Discord account or server, then choose a slightly smaller target in MedleyKit. Discord limits can vary, so the page does not assume one fixed cap for every user.
Will the compressed video be exactly the target size?
The target is a close estimate rather than a byte-perfect guarantee. MedleyKit can make one focused correction when the first pass is too large, but complex motion and browser encoder differences can still move the final size slightly above or below the value you selected.
Is my video uploaded during compression?
No. The selected video is read and encoded by the browser on this device. MedleyKit does not upload the media file for processing, does not require an account and does not add a MedleyKit watermark to the exported MP4.