Platform upload directory
Video Compressors by Platform
Browse video compressors by platform to find the right tool or upload guide for your app, email service or recording device.
Messaging and email
Start here when the upload problem is an attachment, chat message, or send limit.
Chat upload
Discord Video Compressor
Choose this when Discord rejects an MP4 and you need a tighter attachment target.
Starting preset: 9.5 MB
Email provider presets
Compress Video for Email
Choose Gmail, Outlook, or a conservative business-mail target before compressing an attachment.
Presets: 24 MB · 18 MB · 10 MB
Email attachment
Compress Video for Gmail
Prepare a direct attachment for personal Gmail, or decide when a Drive link is a better fit.
Personal Gmail: below 25 MB total
Messenger sharing
WhatsApp Video Compressor
Use this for WhatsApp chats or Status when the current app limit matters.
Leave upload buffer
Messenger warning
Messenger Video Compressor
Use this when Messenger shows a file-size warning before your message sends.
Check the current warning
Device and desktop workflows
Follow browser-based steps for the device that recorded or exported your video. These are not separate app downloads.
Mobile recordings
iPhone Video Compressor
Prepare an iPhone or iPad recording for browser compression, with guidance for files that are too large to send.
Target MB or percent
Desktop export
Mac Video Compressor
Use this after a Mac, QuickTime, or iMovie export is still too large.
Export-size cleanup
Windows workflow
Windows Video Compressor
Choose this for Windows exports before email, forms, social uploads, or storage.
Final MP4 size check
How to choose
How to choose a platform video compressor
The destination sets the requirements; your device affects how you prepare the file. Start with the problem you need to solve, then check the output before sharing.
Start with the app
If Discord, Gmail, WhatsApp, or Messenger blocked the upload, choose that page before changing settings.
Check the upload requirements
YouTube and social uploads may depend on duration, account status, ratio, or resolution, not only MB.
Choose your recording device
Choose iPhone, Mac, or Windows when the oversized file comes from that recording or export workflow.
Questions about video compressors by platform
Which should I choose: the app or my device?
Start with the destination if an app has rejected your video: its upload requirements determine the size you need. Choose iPhone, Mac or Windows when you need help preparing a recording or export before deciding where to send it.
Are the preset sizes guaranteed upload limits?
No. A preset is a starting target for compression, not a promise that an app will accept the result. Check the current limit shown for your account, leave room below it, and compare the downloaded file size with that limit.
Will a smaller MP4 fix every upload error?
No. An upload can fail because of video length, format, aspect ratio or account restrictions. Read the error first. Reducing MB helps with a file-size warning; it does not shorten a video or change account permissions.
Can I use one compressed video in several apps?
You can try the same MP4 wherever its format and dimensions are accepted. Choose a target below the smallest applicable size limit, then check playback and detail. Keep the original so you can make a higher-quality copy for destinations with more room.
Do these tools upload my video?
The compression tools process your selected video in your browser and create a local MP4 download. The page and encoding resources may still need an internet connection. You choose whether to send the finished video to another app.
Related starting points
More ways to reduce video file size
Use the general compressor for a quick reduction, estimate a target with the calculator, or compare ways to make a large recording easier to share.
Online Video Compressor
Use the main compressor when the destination is not tied to one platform.
Compress Video Without Losing Quality
Choose this when quality matters more than hitting a strict app limit.
Video File Size Calculator
Estimate a realistic target before choosing or retrying a preset.
Make Video File Smaller
Use the beginner guide when you are choosing between trimming, resizing, and compression.
Social upload checks
Use these pages when the blocker may be size, duration, aspect ratio, or account status.
Social platforms
Social Video Upload Size Limits
Compare Instagram, TikTok, X, Reddit, and similar upload checks before compressing.
Size, duration, ratio
Video platform
YouTube Video Upload Size Limit
Check YouTube file-size, duration, and account limits before deciding whether compression helps.
Size and duration