Descript’s free MP4 compressor trims down your videos without compromising clarity. Compress MP4s for quicker downloads, share a link to watch them in Descript’s web player, or convert M4V, MPEG, MOV, and other video file types into a compressed MP4 format — all while maintaining quality.
Compress MP4
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01
Upload your MP4 video
To reduce MP4 size, start by uploading your video files to Descript’s workstation. If you have other formats, like MPEG or MOV, upload them too, as Descript can serve as a video converter .
02
Trim or edit as needed
Before using the file compressor , trim your content in the transcript editor — another way to cut file size without losing detail. Shorter videos generally require less encoding, and Descript’s automatic transcription makes editing feel like working in a doc.
03
Compress and share your MP4
Export your smaller MP4 file and share it on Discord, TikTok, Instagram, or via email. Need a quick share link instead? Share it with Descript’s built-in web hosting , complete with an embedded player and a download button.
Multiple ways to reduce the file size of MP4s
Cut MP4 files down to manage storage on services like Google Drive and Dropbox. Host and share your MP4s online with built-in storage and a web player from Descript. Tweak quality, frame rate, or resolution to reduce file size. There’s more than one way to make sure your MP4 files take up less space.
Quickly Compress MP4s for any social media platform
Whether you’re uploading to TikTok, Instagram, YouTube, or Discord, Descript’s MP4 compressor lets you instantly resize and optimize your video for each platform’s requirements. Adjust resolution, frame rate, or bitrate to hit specific upload limits, or use presets to automatically generate social-ready clips that stay under size caps without losing quality.
Convert MP4 to other video formats
Descript’s MP4 compressor doubles as a full video converter, letting you export your project in multiple formats — including MOV, AVI, and WEBM. Perfect for when different platforms or clients require specific file types. You can even downscale HD MP4s to lighter, faster-loading formats while keeping playback smooth.
Edit your MP4 before you compress
Unlike standalone compressors, Descript lets you edit before you export. Trim unwanted sections , remove filler words , add captions , or enhance audio , all in one platform. By tightening your edit first, you naturally shrink MP4 file size while improving watchability. Descript brings editing and compression together, saving time and keeping your workflow simple.
Descript isn't just an MP4 compression tool—it’s a complete AI-powered video editing platform that helps you shrink, refine, and share your content faster. Collaborating with teammates? Fighting platform upload limits? Cutting clips for social? Everything you need is built into your workflow.
Multi-track editor
Arrange, trim, and layer multiple media tracks to polish your MP4s before compression. Adjust visuals, mix audio, or cut clips seamlessly — all in one workspace.
Stock Media Library
Add background music, sound effects, or visuals from Descript’s stock library to elevate your compressed MP4 videos and make them share-ready.
Repurpose for social
Find the best moments in your MP4 files automatically. Descript identifies highlights and helps you create shorter, optimized clips that save space and increase engagement.
Web Hosting
Export or share directly from Descript. Publish your compressed MP4s as private or public links, embed them online, or download for social and email sharing.
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Limited use of Underlord, our agentic video co-editor and AI tools
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Elevate your projects, watermark-free
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Export 1080p, watermark-free
Access to Underlord, our AI video co-editor
AI tools including Studio Sound, Remove Filler Words, Create Clips, and more
AI Speech with custom voice clones and video regenerate
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30 media hours / month
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800 AI credits / month
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Full access to Underlord, our AI video co-editor and 20+ more AI tools
Generate video with the latest AI models
Unlimited access to royalty-free stock media library
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How can I use Descript to compress MP4s?
What are the video upload file size limits for Discord?
What are the video upload file size limits for TikTok?
How do I compress an MP4 without losing quality?
Can I compress MOV or AVI files in Descript?
How do I make an MP4 smaller for email or messaging apps?
Shorten your video in Descript, export at a lower resolution, or use the built-in web hosting feature to send a shareable link instead of attaching large files.
Does Descript offer a free MP4 compressor?
Can I compress vertical MP4s for TikTok or Reels?
How do I share compressed MP4s without uploading them?
If your file is still too large to send, Descript’s web publishing lets you host the video on a Descript page with a link and embedded player—no upload needed.
