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.

Is ButterShare really anonymous?

Yes. ButterShare stores no user profiles, email addresses, or personal identity records. Room setup metadata is ephemeral in memory and discarded when the room closes.

Send Files Without Sign-Up (Instant & Free)

Why ButterShare

A Simpler, Faster Way to Transfer Files

Why should you have to create an account, verify an email, and submit to marketing spam just to send a file to a colleague or friend? ButterShare believes basic utilities should work instantly without friction.

Direct Browser Transfer

Encrypted Browser Transfer

Pure direct Architecture

Engineered for Maximum Speed & Privacy

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

Zero Account Creation

Open the site, drop your files, and share. No signup forms or passwords.

No Email Collection

We don't ask for your email, the recipient's email, or phone numbers.

No Cloud Tracking

Transfer data is encrypted end-to-end between browsers and never stored on our servers.

Unlimited Usage

No monthly transfer quotas, credit limits, or daily download restrictions.

Streamlined 3-Step Flow

How to Share Files Anonymously in 3 Steps

Start transferring in seconds with zero software installation.

01Step 1

Drop Your Files

No login prompt will ever interrupt you. Just drag in your files.

02Step 2

Generate Ephemeral Room

A private 6-character room code is created for your session.

03Step 3

Direct direct Stream

Connect the receiver and transfer data directly with zero logging.

Frequently Asked Questions

Got questions? We've got answers

Everything you need to know about send files without signup, transfer limits, and privacy.

Browse Platforms & Alternatives

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 Files Without Sign-Up,Share anything. No limits.

Drop any files or folders here