Video to MP4 Converter
Convert a browser-supported video to an MP4 with AVC video and AAC audio. No account or processing-server upload is required.
More private browser video tools
Edit or convert one video without sending it to an Instasize processing server. Codec support and processing speed depend on the browser and device.
Edit video
Convert to MP4
Related tools
Same job on a different file type or batch size. Each tool still processes the file in this browser.
Create a broadly compatible MP4
Common video inputs
Select an MP4, MOV, WebM, MKV, M4V, TS, MTS, or M2TS file. A recognized extension does not guarantee that the browser supports every codec inside the container.
Standardized output
The converter requests AVC video and AAC audio in an MP4 container so the result can work across many current browsers, apps, and devices.
Inspect the result
Re-encoding can change size and quality. Play the complete output and verify duration, sync, orientation, and dimensions.
Output, privacy, and compatibility
Private processing
The selected video is read and processed in this browser with MediaBunny. This workflow does not upload the video to an Instasize processing server.
MP4 output
Completed edits download as MP4 files with AVC video and AAC audio when audio is retained. Re-encoding can change file size and visual quality.
Browser limits
Codec support, speed, and memory limits vary by browser and device. Keep the original file and review the complete result before deleting or publishing anything.
How to convert a video to MP4?
- 1
Step 1: Choose a video
Select one supported video file up to 200MB.
- 2
Step 2: Convert to MP4
Start a local browser conversion to AVC and AAC.
- 3
Step 3: Review
Play the completed MP4 and check its important details.
- 4
Step 4: Download
Save the MP4 while retaining the original source file.
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Which formats can I convert to MP4?
The file picker accepts common video containers including MP4, MOV, WebM, MKV, M4V, TS, MTS, and M2TS. The browser must also support the codecs stored inside the file.
Can converting to MP4 improve video quality?
No. Conversion can improve compatibility, but re-encoding cannot restore detail or quality missing from the source.
Which videos are supported?
The tool accepts common video files up to 200MB. Successful decoding and MP4 encoding depend on the source codec and the video capabilities available in your browser.
Is my video uploaded?
No. This workflow processes the selected file locally in your browser. The video is not sent to an Instasize processing server.
Is this video tool free?
Yes. The browser workflow is free to use and does not require an account before processing or downloading a result.
Instasize pricing: free editing and paid AI plans
Resize, crop, add text and work with layers for free. Paid plans include an AI usage allowance, background removal and access to image and video models. First-time subscribers can start with a free trial.
Free
Essential tools for casual creators.
Free forever
- Resize, crop, text and layers
- Batch resize & convert, 200 photos at a time
- HD export
- No AI features: AI edits are part of Pro
Pro
PopularEssential AI tools for creators
Billed monthly
Annual option: $299.99 billed yearly.
- More AI usage
- Batch background removal, 200 photos at a time
- 2 generations at a time
- AI Chat Editing
- All AI image models
- All AI video models
Ultimate
Advanced features for professionals
Billed monthly
Annual option: $499 billed yearly.
- More AI usage
- Batch background removal, 200 photos at a time
- 4 generations at a time
- AI Chat Editing
- All AI image models
- All AI video models
Max
Maximum power and speed
Billed monthly
Annual option: $2199 billed yearly.
- More AI usage
- Batch background removal, 200 photos at a time
- 8 generations at a time
- AI Chat Editing
- All AI image models
- All AI video models
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