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File Size Limits by Platform: The Complete 2026 Reference Guide

2026-04-19·8 min read·✓ Tested 2026-04-19
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Every platform imposes file size limits — and they're rarely the same. WhatsApp won't send a file over 100MB. Gmail caps attachments at 25MB. UPSC rejects photos over 40KB. These limits exist for real reasons: servers cost money, CDN bandwidth is expensive, and mobile users in bandwidth-constrained regions need reasonable load times. This guide consolidates every major platform's limits in one place, updated April 2026.

Messaging Apps

Platform Images Video Files/Docs Notes
WhatsApp16MB (compressed to ~150KB)16MB100MBSend as Document to skip image compression
TelegramUnlimited (resized)2GB (Premium) / 1.5GB (free)2GB Premium / 1.5GB freeBest messaging app for large files
Signal100MB100MBEnd-to-end encrypted
iMessage100MB100MBiOS auto-compresses before sending
WeChat25MB25MB25MBVery restrictive limits
Line300MB1GBGenerous file sharing

Email Providers

Provider Attachment Limit Storage Workaround
Gmail25MB15GB (shared)Auto-offers Google Drive link for larger files
Outlook20MB50GB mailbox50MB with OneDrive link attachment
Yahoo Mail25MB1TBDropbox integration for larger
ProtonMail25MB1GB freeEnd-to-end encrypted
iCloud Mail20MB5GB freeMail Drop sends up to 5GB via temporary link

Social Media Platforms

Platform Images Video Key Constraint
Instagram8MB (Feed)4GBStories: 4GB, max 60s. Reels: 4GB, max 15 min
TikTok287.6MBMax 10 minutes. App uploads up to 1GB but compresses
Facebook10MB10GBVideo max 240 minutes
Twitter / X5MB512MBGIF: 15MB. Premium gets 8GB video
LinkedIn8MB5GBVideo max 10 minutes (feed), 15 min (newsletter)
Pinterest20MB2GBVideo pins max 15 minutes
Snapchat5MB1GBSnaps max 60s
YouTube256GB or 12 hoursMost generous video platform
Reddit20MB1GBVideo max 15 minutes (subreddit-dependent)

Cloud Storage

Service Max File Size Free Storage Notes
Google Drive5TB per file15GBDocs/Sheets/Slides don't count against storage
Dropbox50GB (free) / 2TB (Pro)2GBFile upload limited by your plan storage
OneDrive250GB per file5GBMicrosoft 365 subscribers get 1TB
iCloud Drive50GB per file5GBSeamless on Apple devices
WeTransfer Free2GB per transferFiles expire after 7 days
WeTransfer Pro200GB per transfer€16/month, 1TB storage

Work & Collaboration Tools

Tool File Limit Notes
Slack1GB (free) / 5GB (Business+)Free plan has 5GB total workspace storage
Microsoft Teams250MB per fileSharePoint backend — 15GB per team
Zoom512MB cloud recording (free)Paid plans: unlimited cloud recording
Google MeetNo upload limitRecordings go to Google Drive (15GB quota)
Notion5MB (free) / Unlimited (paid)Free plan 5MB per file is very restrictive
Confluence250MB per attachmentAtlassian Cloud: 2GB space storage free

Development & Design

Platform Limit Notes
GitHub25MB per file / 100MB warningGit LFS for files over 100MB. Repo soft limit 1GB
Figma2GB per fileImage assets: 4096×4096px max
Canva300MB per fileVideo uploads: 1GB on Pro

Indian Government Portals

Portal Photo Documents Notes
UIDAI (Aadhaar)20KB2MBJPEG only, white background
DigiLocker1MB per docPDF, JPG, PNG accepted
Income Tax (India)5MB (return) / 1MB (docs)PDF only for most documents
EPFO500KB2MBJPEG for photo
UPSC40KB (photo) / 10KB (sig)300KB PDFStrictest photo limits of any major portal
SSC100KB (photo) / 50KB (sig)Photo 100×120px, sig 40×60px

Quick Reference Card

Most common limits to remember:

Gmail: 25MB — the email standard everyone should know

WhatsApp: 16MB media, 100MB documents — send as Document for full quality

Instagram: 8MB images, 4GB video — video is generous, images are tight

Twitter/X: 5MB images — smallest of major social platforms

UPSC: 40KB photo, 10KB signature, 300KB PDF — compress before every upload

Google Drive: 5TB per file — effectively unlimited for normal use

GitHub: 25MB hard limit per file — use Git LFS for binary assets

Notion free: 5MB — surprisingly small, upgrade or use Drive links

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FAQ

Why do platforms have file size limits at all?

Three main reasons: server storage costs (storing billions of files adds up fast), CDN bandwidth costs (every download costs money), and user experience on slow mobile connections. A 50MB image loads slowly on 3G networks common in developing markets. WhatsApp's 16MB limit exists specifically to keep the app usable in India, Brazil, and other high-user markets with slower networks.

What happens when you exceed a platform's file size limit?

Behavior varies: email providers (Gmail, Outlook) simply block the send and show an error. Social platforms like Instagram silently compress your image to meet their limits, which can degrade quality. WhatsApp rejects videos over 16MB outright with an error message. Government portals typically show a specific error like "File size exceeds maximum limit."

WhatsApp says my video is too large — what's the easiest fix?

Compress the video to under 16MB using FileCurve's video compressor, or upload it to YouTube/Google Photos and share the link instead. Alternatively, split long videos into multiple shorter clips.

Can I send files larger than Gmail's 25MB limit?

Yes. Gmail automatically offers to send large files via Google Drive — it converts the attachment to a Drive link. The recipient needs a Google account to access files shared this way. Alternatively, use WeTransfer (free up to 2GB) or Dropbox links.

Does compressing an image before uploading to Instagram improve quality?

Yes, counterintuitively. If you upload a 15MB JPEG, Instagram's auto-compression algorithm runs aggressively, often producing worse results than a carefully pre-compressed 1MB image. Upload images at 1080px wide and under 1MB for the best Instagram quality.

Which messaging app has the highest file size limit?

Telegram is the clear winner: 2GB per file for Premium users, 1.5GB free. It's the go-to choice for sharing large files. Line (1GB files) and iMessage/Signal (100MB) are next. WhatsApp's 100MB document limit is adequate for most use cases but lags behind Telegram significantly.