0io.io

Turn any URI scheme into a clickable HTTP link

0io.io/

How it works

Prefix any URI with 0io.io/ and share it as a normal HTTP link.

1

Compose

Prepend 0io.io/ to any URI scheme

2

Share

Paste the link anywhere — chat, email, docs, markdown

3

Redirect

The browser opens the native handler for that scheme

Supported URI Schemes

Any valid URI scheme works. Here are the most commonly used ones:

✉

Email

mailto:  or just  user@domain
Open the default email client with pre-filled fields. Bare email addresses are auto-detected.
Shorthand 0io.io/hi@example.com → Auto-detected as email, opens Mail / Gmail / Outlook
With subject 0io.io/mailto:hi@example.com?subject=Hello → Use mailto: prefix to add subject, cc, bcc, body
☎

Phone Call

tel:  or just  +number
Initiate a phone call. Phone numbers (7+ digits) are auto-detected.
Shorthand 0io.io/+1-800-555-0199 → Auto-detected as phone, opens dialer ready to call
Explicit 0io.io/tel:+1-800-555-0199 → Same result with explicit tel: prefix
💬

SMS / Text

sms:
Open the messaging app with a pre-composed text.
Example 0io.io/sms:+1-800-555-0199?body=Hi → Opens Messages / SMS app with number and body
📁

Local File

file://
Open a file or folder in the OS file manager.
Example 0io.io/file:///Users/me/Documents → Opens Finder / Explorer at the given path
💻

VS Code

vscode://
Open a file, folder, or extension in Visual Studio Code.
Example 0io.io/vscode://file/path/to/project → Launches VS Code and opens the project folder
🔒

SSH

ssh://
Open a terminal SSH session to a remote host.
Example 0io.io/ssh://user@192.168.1.100 → Opens Terminal with SSH connection to the host
🗨

Slack

slack://
Deep link into a Slack workspace, channel, or DM.
Example 0io.io/slack://channel?team=T123&id=C456 → Opens Slack app and navigates to the channel
🎥

Zoom

zoommtg://
Join a Zoom meeting directly from a link.
Example 0io.io/zoommtg://zoom.us/join?confno=123456789 → Opens Zoom and joins the meeting room
🎵

Spotify

spotify:
Open a track, album, or playlist in Spotify.
Example 0io.io/spotify:track:6rqhFgbbKwnb9MLmUQDhG6 → Opens Spotify app and plays the track
📍

Maps / Geo

geo:
Open a location in the default maps application.
Example 0io.io/geo:37.7749,-122.4194 → Opens Apple Maps / Google Maps at San Francisco
📱

FaceTime

facetime:
Start a FaceTime video call (Apple devices).
Example 0io.io/facetime:user@icloud.com → Launches FaceTime and initiates a video call
✨

Any Custom Scheme

yourapp://
Works with any registered URI scheme on the user's device.
Example 0io.io/myapp://action/param → Opens the registered handler for myapp://

Usage

Two ways to build a redirect link:

Path-based (recommended)

# Email with subject
https://0io.io/mailto:hi@example.com?subject=Hello

# Open VS Code
https://0io.io/vscode://file/Users/me/project

# Phone call
https://0io.io/tel:+18005550199

Query-based

# Pass the full URI as a query parameter
https://0io.io/?uri=mailto:hi@example.com