Compress Video to 25MB
Compress video to under 25 MB online for free. Our compress video to 25MB tool automatically calculates the optimal bitrate to reduce your video for Gmail, Discord, and email attachments — all processing happens locally in your browser using the MediaRecorder API, no signup required.
Compress Video to 25MB
Upload your video, choose a target size, and click "Compress" to reduce it to under 25 MB for Gmail, Discord, and email attachments — all processing happens locally in your browser using the MediaRecorder API.
Output: WebM (VP8/VP9) — supported by Gmail, Discord, and all modern browsers. Requires Chrome 74+, Edge 79+, or Firefox 65+. To convert to MP4, use HandBrake or VLC after downloading.
Why Use Our Compress Video to 25MB Tool?
Instant Video Compression to 25MB
Our compress video to 25MB tool automatically calculates the required bitrate and re-encodes your video to fit under 25 MB — entirely in your browser using the MediaRecorder API.
Secure Video Compression Online
Your video files never leave your device when you use our compress video to 25MB tool online. All processing happens locally in your browser — 100% private with zero server uploads.
Gmail, Discord & Email Compatible
Our compress video to 25MB tool targets the 25 MB limit used by Gmail, Discord, and most email providers — so your compressed video attaches and sends without bouncing.
100% Free Video Compressor to 25MB
Compress video to 25MB online completely free — no signup, no premium tier, no ads. Our compress video to 25MB tool is free to use for everyone, with no file size limits.
When to Compress Video to 25MB
Gmail Email Attachments
Gmail has a 25 MB attachment limit. Use our compress video to 25MB tool to reduce video clips to under 25 MB before attaching them to Gmail emails — no more 'file too large' errors.
Discord File Uploads
Discord's free tier limits file uploads to 25 MB. Compress video to 25MB online with our tool to share video clips in Discord servers and DMs without a Nitro subscription.
Email Newsletter Videos
Marketing emails with video attachments need to stay under 25 MB for most email providers. Use our compress video to 25MB tool to reduce promotional video clips for email campaigns.
Slack & Teams Sharing
Workplace messaging platforms have file size limits for video uploads. Compress video to 25MB online to share screen recordings, demos, and clips in Slack and Microsoft Teams.
Social Media Story Clips
Short video clips for social media stories and posts often need to be under 25 MB. Use our compress video to 25MB tool to reduce clip size before uploading to Instagram, TikTok, or Twitter.
Client Deliverable Sharing
Freelancers and agencies sharing video deliverables via email need files under attachment limits. Compress video to 25MB online to send preview clips and short deliverables directly via email.
Understanding Video Compression to 25MB
What is Compress Video to 25MB?
Compressing video to 25 MBmeans reducing a video file's size to fit within the 25 MB attachment limit used by Gmail, Discord, and most email providers. Video compression works by reducing the video bitrate — the amount of data used per second of video. Our compress video to 25MB tool onlineautomatically calculates the required bitrate from your video's duration, then re-encodes the video using the browser's MediaRecorder API at that bitrate — all locally on your device with no server upload required.
How Our Compress Video to 25MB Tool Works
- Upload Your Video:Drop any video file onto the drop zone or click to browse. Our compress video to 25MB tool accepts MP4, WebM, MOV, AVI, and any other format supported by your browser's video decoder.
- Automatic Bitrate Calculation: Our tool reads the video duration and calculates the maximum bitrate that will produce a file under 25 MB. You can also choose a custom target size (10 MB, 15 MB, 20 MB, or 25 MB) for different platforms.
- Download the Compressed Video:Click "Compress to 25MB" and our tool re-encodes the video using the MediaRecorder API at the calculated bitrate. The compressed video downloads automatically as a WebM file.
Platform File Size Limits
- Gmail: 25 MB per attachment — the most common limit. Our tool targets 24 MB by default to leave a safety margin.
- Discord (free): 25 MB per upload. Use the 25 MB target to share video clips in Discord without a Nitro subscription.
- Outlook / Hotmail: 20 MB per attachment. Use the 20 MB target when sending via Outlook.
- Slack (free): 5 MB per file upload. Use the 10 MB target as a starting point, then reduce further if needed.
Important Note on Video Quality
Compressing video to a target size involves a quality tradeoff. Our compress video to 25MB tool uses the minimum bitrate needed to hit the target — it preserves as much quality as possible. For very long videos (over 5 minutes), the required bitrate may be very low, resulting in visible quality reduction. For best results, trim your video to the shortest necessary length before compressing. The output format is WebM (VP8/VP9 codec), which is supported by all modern browsers, Discord, Gmail, and most video players.
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Frequently Asked Questions About Compress Video to 25MB
A compress video to 25MB tool reduces video file size to under 25 MB — the attachment limit for Gmail, Discord, and most email providers. Our compress video to 25MB tool online does this automatically in your browser using the MediaRecorder API — no server upload or video software required.
Yes. Reducing video file size requires lowering the bitrate, which reduces video quality. Our compress video to 25MB tool uses the minimum bitrate needed to hit the target size — it preserves as much quality as possible. For short videos (under 2 minutes), the quality reduction is usually minimal.
Absolutely. Our compress video to 25MB tool online processes everything locally in your browser using the MediaRecorder API. Your video files never leave your device — there is no server upload, no cloud storage, and no data retention of any kind.
Yes, 100% free. Our compress video to 25MB tool online has no signup requirement, no premium tier, no file size limits, and no ads. You can compress video to 25MB online as many times as you need, completely free.
Our compress video to 25MB tool accepts any video format supported by your browser's video decoder — MP4, WebM, MOV, AVI, MKV, and others. The output is always a WebM file (VP8/VP9 codec), which is supported by all modern browsers, Discord, Gmail, and most video players.
Modern browsers can re-encode video using the MediaRecorder API, which outputs WebM format (VP8/VP9 codec). WebM is an open standard supported by all modern browsers, Discord, Gmail, and most video players. To convert the WebM to MP4, use a desktop tool like HandBrake or VLC after downloading.
If your video is very long (over 5 minutes) and still exceeds 25 MB after compression, the required bitrate may be too low for the MediaRecorder API to achieve. Try trimming the video to a shorter clip using our Video Trimmer tool first, then compress the shorter clip to 25 MB.
Yes. Our compress video to 25MB tool offers target sizes of 10 MB, 15 MB, 20 MB, and 25 MB — covering the limits for Slack, Outlook, Discord, and Gmail. Choose the appropriate target for your platform.
Compression time depends on the video length and your device's processing power. Short clips (under 1 minute) typically compress in a few seconds. Longer videos (5+ minutes) may take 30–60 seconds. The progress bar shows real-time compression progress.