How to Send Large Files on Substack

Bypass the 50MB limit

The Problem: Substack's File Size Limit

Substack limits file sharing to 50MB (50MB for attachments).

With 35 million users, Substack is one of the most popular platforms for communication. But when you need to share large files like videos, high-resolution photos, presentations, or project files, you hit that frustrating size limit.

The Solution: Use SendFiles.Online

Instead of trying to compress or split your files, use SendFiles.Online to share files up to 3GB for free. You upload the files to our server, get a download link, and share that link on Substack. Your recipient clicks the link and downloads directly.

  • 3GB free transfers - much larger than Substack's 50MB limit
  • No account required - for you or your recipient
  • 7-day availability - plenty of time to download
  • Password protection - optional extra security
  • Works on any device - desktop, mobile, tablet

Step-by-Step: Send Large Files on Substack

1

Go to SendFiles.Online

Open sendfiles.online in any web browser. No signup or account creation needed - just open the page and you're ready to upload.

2

Upload Your Files

Drag and drop your files onto the upload area, or click to browse and select files. You can upload multiple files at once, up to 3GB total for free.

3

Copy Your Download Link

Once upload completes, you'll get a unique download link. Click "Copy" to copy it to your clipboard. You can also add password protection if your files are sensitive.

4

Share the Link on Substack

Add your SendFiles.Online link to newsletters to share downloadable resources, PDFs, or bonus content with subscribers.

Upload Files Now

Frequently Asked Questions

Upload your files to SendFiles.Online (up to 10GB free), copy the download link, and share it on Substack. Your recipient can download directly without any account.

Substack has a file size limit of 50MB. SendFiles.Online lets you bypass this limitation by sharing a download link instead of the actual file.

Yes! While Substack limits direct file sharing to 50MB, you can use SendFiles.Online to share files up to 10GB. Just upload your files, get a link, and share it on Substack.

Yes, SendFiles.Online offers free transfers up to 10GB with 14-day storage. Upload your files, share the link on Substack, and your recipients can download for free.

Free transfers on SendFiles.Online are available for 14 days. Your recipients can download the files as many times as needed during this period.

Yes! When uploading to SendFiles.Online, you can add password protection. Only recipients with the password can download the files.

No. Recipients just click your SendFiles.Online link and download directly. No signup, no account, no app installation required.

Why Use SendFiles.Online for Substack?

Fast Uploads

Our servers are optimized for speed. Large files upload quickly so you can share faster.

Secure Transfers

Files are transferred over HTTPS. Add password protection for extra security.

No Account Needed

You don't need to sign up. Neither does your recipient. Just upload, share, download.

Works Everywhere

Works on any device with a browser. Desktop, mobile, tablet - any operating system.

Ready to Send Large Files?

Upload up to 3GB free. No signup required.

Upload Now
3GB Free No Signup
Substack File Limits
File Size Limit 50MB
Note 50MB for attachments
Monthly Users 35 million
With SendFiles 3GB
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