File Send

What it does

This feature lets you hand files to someone via a share link when they're too big to attach to email or chat — videos, design files, batches of photos, and so on. The recipient can receive them just by opening the link, even without an Addness account.

• Uploading a file issues a share link
• Choose a retention period of 1, 3, or 7 days. Once it expires, the link can no longer be opened
• Add an optional download key so that only people who know the key can download
• You can disable the link even after sending it

How to send (browser)

On desktop, press "More" in the sidebar to open "Other features," then press "File Send." On mobile, open the menu (≡) at the top left and choose "File Send" under "More." Either way, the File Send upload screen opens in a new browser tab. On desktop, if you pin it in "Other features," you can open it from the sidebar.

1. Drop a file into the "Drop a file, or click" area
2. Choose a retention period of "1 day / 3 days / 7 days"
3. If needed, enter an optional download key (8–72 characters; if left empty, the file can be downloaded with just the URL)
4. Press "Upload"
5. When it's done, "Copy link" and send it to the recipient. If you set a key, share the key with them separately

Note: If you reload the page or close the tab during upload, you'll have to start over.

Send history and disabling

The upload screen lists your own transfers, split into "Public," "Incomplete transfers," and "Disabled transfers."

• Public: Available for the recipient. Use "Disable this link" on each row to cut off access at any time
• Incomplete transfers: Uploads that stopped partway. They keep using your capacity, so discard them to free up space if you don't need them (they can't be resumed)
• Disabled transfers: Already disabled. The recipient can't retrieve anything even if they open the link

Sending from AI (MCP integration)

AI connected via MCP (Claude Code, Codex, etc.) can also use File Send. The AI creates the transfer, uploads it, and returns the share link and expiry. It can also set the retention period (1, 3, or 7 days) and a download key, check send history, and disable links. A single transfer can include up to 100 files.

Organization admins can review the whole organization's send history through AI.

→ MCP integration guide

Limits

• The capacity you can send is allotted per person and determined by your plan (→ Plans and billing)
• A single transfer can include up to 100 files
• "File Send" in "Other features" and in the mobile menu appears for every organization. Only organizations on a paid plan can upload. Without permission, you'll be turned away at the upload screen

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This article is based on the screens as of October 15, 2026. Addness is updated daily, so the screens and steps may differ slightly from what you see now.