Understanding File Size Limits: Complete Guide to Large File Sharing
— Written by Brendan, Founder of FileShot.io
File size limits determine what you can share and how. Understanding these limits helps you choose the right service and work around restrictions when needed. This guide covers file size limits across different services and strategies for sharing large files.
Why File Size Limits Exist
File size limits exist because large files have real costs. Storage costs money, and bandwidth isn't free—every big upload and download consumes resources. Large files also require more server overhead for processing and delivery, and generous limits can be abused (for example, using a free service as a bulk hosting platform). Finally, limits help keep the experience fast and reliable for everyone by reducing timeouts and failed transfers.
File Size Limits by Service
Email Services
Email is the most limited option. Gmail and Yahoo typically cap attachments at around 25MB, Outlook is often about 20MB (sometimes lower), and most providers fall in the 10—25MB range. That's enough for a single document, but not for modern media or project files.
Cloud Storage Services
Cloud storage is more flexible, but limits often show up as total storage caps on free tiers. Dropbox free is constrained mostly by total storage, Google Drive gives 15GB total with a very high per-file limit, OneDrive free has a smaller total cap with a higher per-file limit, and iCloud similarly focuses on total storage. The catch is that both people often need accounts, and links may stay accessible unless permissions are managed carefully.
File Sharing Services
Dedicated file sharing services usually publish clear per-file limits. WeTransfer free is commonly around 2GB, SendGB free around 5GB, file.io can be much smaller, and FileShot's free tier supports up to 10 GB per file (one of the highest free limits available). These tools are designed around “send a link, receive a file” rather than long-term storage.
FileShot File Size Limits
Free Tier
FileShot's free tier offers up to 10 GB per file with 50 GB total storage and a 90-day link expiry. Zero-knowledge AES-256-GCM encryption is included on all tiers.
Pro Tier ($5/month)
Pro raises the per-file limit to 100GB per file and adds the ability to sell files via paid download links.
Creator Tier ($12/month)
Creator is built for heavy, frequent sharing: unlimited storage, up to 300 GB per file, API access, and priority support.
Strategies for Sharing Large Files
Strategy 1: Compress Files
Compressing files reduces size without losing data (for lossless compression) or with minimal quality loss (for lossy compression):
ZIP/RAR is a great default for bundling multiple files, while images and videos often benefit from re-encoding (JPG/WEBP for images, MP4/WEBM for video) to reduce size dramatically. PDFs can also be compressed depending on embedded images and fonts.
Tools: FileShot Archive Builder, Image Compressor, or desktop compression tools
Strategy 2: Split Files
Splitting a file into parts (for example, part1.zip, part2.zip) is a practical workaround when a single upload won't fit. You share all parts, and the recipient combines them to reconstruct the original. This approach is common with tools like 7-Zip and WinRAR.
Tools: Desktop compression tools (WinRAR, 7-Zip) or command-line tools
Strategy 3: Use Higher Tier Plans
If large sharing is a recurring need, upgrading is often the simplest option. Higher tiers typically increase storage, remove rate limits, and allow larger transfers without having to split archives or compromise quality.
Strategy 4: Use Dedicated Large File Services
Services designed for large transfers remove most of the friction. FileShot supports files up to 10 GB on the free tier and expands further with paid tiers, WeTransfer Plus raises per-file limits, SendGB has a higher paid cap than its free tier, and services like Mega focus on large storage plans. The best choice depends on whether you want simple transfers, long-term storage, or privacy-first encryption features.
Understanding Storage vs. File Size Limits
File Size Limit: Maximum size of a single file you can upload.
Storage Limit: Total amount of data you can store across all files.
The distinction matters for planning your sharing strategy. FileShot Free gives you 50 GB of storage (10 GB per file) with a 90-day automatic expiry on each link — when a link expires, the file is deleted, freeing up space. This means you are not accumulating permanent storage; you are sharing files that self-destruct after 90 days. FileShot Pro ($5/month) raises the per-file limit to 100 GB with unlimited storage. FileShot Creator ($12/month) offers unlimited storage with up to 300 GB per file, plus API access.
Common File Sizes
Understanding typical file sizes helps you plan your sharing strategy and know when you might bump into limits. Documents like Word files or PDFs typically range from 1-10MB unless they contain many high-resolution images. Photos depend heavily on resolution and format, with JPGs and PNGs usually falling between 2-10MB, though RAW photos from professional cameras can hit 50MB or more. Videos vary wildly?a short MP4 clip might be 100MB, while an hour of 1080p or 4K footage can easily reach 5GB or beyond. Design files from Photoshop, Illustrator, or Sketch often sit between 50MB-2GB depending on layer complexity and embedded resources. Datasets, whether CSV files, databases, or scientific data, can range from 100MB to 10GB+ depending on the data volume and structure. Software installers and application packages typically fall between 50MB-5GB depending on the application's complexity and bundled resources.
Best Practices for Large File Sharing
1. Compress Before Sharing
Always compress files when possible to reduce size and upload time. Use FileShot's Archive Builder or Image Compressor.
2. Check File Size Before Upload
Verify file size before uploading to ensure it's within limits. This prevents failed uploads and wasted time.
3. Use Appropriate Service
Choose services with file size limits that match your needs. Don't use email for large files—use dedicated file sharing services.
4. Consider Upload Time
Large files take time to upload. Consider upload time when planning file sharing, especially for time-sensitive files.
5. Monitor Storage Usage
Track your storage usage to avoid hitting limits. FileShot provides storage usage information in account dashboards.
Working Around File Size Limits
Option 1: Compress Files
Use compression to reduce file sizes through methods like ZIP or RAR for archiving multiple files together, image compression for photos (converting to more efficient formats like WEBP or reducing JPG quality slightly), and video compression to re-encode at lower bitrates or resolutions without sacrificing too much visual quality.
Option 2: Split Files
Split large files into smaller parts using compression tools that support file splitting, then share all parts to recipients who can combine them back into the original file. This approach works around strict per-file limits but requires more effort from both sender and recipient.
Option 3: Upgrade Plan
Upgrade to a higher tier plan for larger limits. FileShot Pro supports 100GB per file with unlimited storage for regular sharing needs, while FileShot Creator offers 300GB per file with unlimited storage for power users and content creators who share large files frequently.
Option 4: Use Multiple Services
Split files across multiple services if needed, though this is less convenient than using a single service with higher limits.
File Size Limit Checklist
Before uploading any file, verify that the file size is within service limits and that storage space is available. Check whether the file can be compressed if needed to reduce its size, ensure the upload time is acceptable for your timeline, and confirm that recipients can download a file of that size without issues on their end.
Conclusion
Understanding file size limits helps you choose the right service and work around restrictions. By compressing files, splitting large files, or upgrading plans, you can share files of any size securely.
FileShot offers generous free file limits (10 GB per file, 50 GB total) and unlimited storage for Creator tier. Start sharing large files or explore our plans for even larger limits.