Is there really no file size limit? How does this compare to WeTransfer?

Unlike WeTransfer which caps free transfers at 2GB and charges $12/month for larger files, ButterShare has zero file size limits. Files stream directly between your device and the recipient's device with 100% privacy. Because zero bytes are stored on a cloud server, you can send 10GB, 50GB, 100GB, or even larger folders without paying a dime.

Do my files ever get uploaded to your servers?

Never. There is no cloud storage, no database caching, and no file hosting. Our connection broker is only used for a split-second handshake to connect the two browsers. Once the direct connection is open, bytes stream strictly device to device. Zero bytes are ever retained anywhere.

How secure is the transfer? Can anyone intercept my files?

ButterShare uses an encrypted browser connection between the paired devices. File bytes do not sit on ButterShare cloud storage, and the room server only helps the two devices find each other.

Does the recipient need to install an app or sign up?

No. The recipient simply visits ButterShare and enters your 6-character room code (or clicks your share link). The transfer initiates immediately inside their standard web browser on any phone, tablet, or computer. No accounts, no passwords, no app installs.

Can I transfer files wirelessly between any device (Windows, Android, iPhone, Mac)?

Yes, exactly. ButterShare brings seamless, wireless device-to-device file transfer to every operating system. You can send files directly between iPhone, Android, Windows PC, Mac, and Linux with zero cables, app installs, or cloud middleman.

Can I transfer whole folders without zipping them first?

Yes. Drag and drop any folder into ButterShare. It is automatically packaged in your browser and transferred intact with its full folder directory structure preserved.

What happens if someone closes their browser tab during a transfer?

Because files stream directly between devices in real time, both browser tabs must stay open until the transfer completes. If a connection drops, ButterShare alerts you immediately with instant reconnection options. Your original files never leave your device.

Why is ButterShare completely free? What's the catch?

Because ButterShare does not host or store your files on expensive cloud servers (like AWS or Google Cloud), our operating costs are negligible. We don't have massive storage bills to pay, so we never need to charge you subscription fees or limit your file sizes.

Do I need to manually compress the folder into a ZIP first?

No. ButterShare inspects directory entries directly in your browser and packages them for transmission automatically.

Send Folders Online Free (No Size Limit, Auto-Zipped)

Why ButterShare

A Simpler, Faster Way to Transfer Files

Most file transfer sites force you to manually create a ZIP file on your computer before uploading. ButterShare has built-in folder directory traversal: simply drag and drop any folder, and ButterShare bundles and streams the contents seamlessly.

Direct Browser Transfer

Encrypted Browser Transfer

Pure direct Architecture

Engineered for Maximum Speed & Privacy

No cloud storage middleman. Direct browser-to-browser streaming.

Drag & Drop Directory Support

Drop whole project folders with nested subdirectories directly into the dropzone.

Preserves Folder Organization

All files and nested paths are preserved when delivered to the recipient.

No Size or File Count Caps

Send folders containing thousands of photos, design assets, or code repositories.

Zero Cloud Upload

Streams directly from sender disk to receiver disk with 100% data privacy.

Streamlined 3-Step Flow

How to Send a Folder Online

Start transferring in seconds with zero software installation.

01Step 1

Drag Any Folder

Drop an entire directory from your desktop or file manager into ButterShare.

02Step 2

Share Room Code

Send the 6-character room code or QR code to the receiver.

03Step 3

Instant Download

The receiver gets all files neatly bundled and ready for download.

Frequently Asked Questions

Got questions? We've got answers

Everything you need to know about send folders online, transfer limits, and privacy.

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Ready to Transfer Files Without Limits?

Drop any file or folder above to start an instant device-to-device stream. No accounts, no subscriptions, 100% free.

No 2GB File Limits

100% Private (0 Bytes Stored)

Every Device & Browser

Send Folders Online,Share anything. No limits.

Drop any files or folders here