Create a short link on opn.onl. Supports scheduling, click limits, folders, tags and one-time (burn-after-reading) links. Returns the short URL and its code.

Shorten many URLs in one call. Returns the created links plus any per-URL errors.

List your short links (most recent first). Filter by folder, tag or free-text search.

Update a link's destination, title, notes, scheduling, click limit, folder or protections. Use the remove_* flags to clear a field.

Delete a short link.

Duplicate an existing link (same destination and settings) under a fresh short code.

Pin or unpin a link (pinned links surface first in the dashboard). Toggles the current state.

Check whether a custom alias/slug is available before shortening with it.

Export all your links as CSV (returns the raw CSV text).

Get the smart-routing rules for a link (device/OS/country/language targeting and A/B weighting).

Replace ALL smart-routing rules for a link. Each rule sends visitors matching the given device/OS/country/language to its destination; empty match fields mean 'any'. Send an empty array to clear all rules.

Get click analytics for a link (clicks, unique visitors, geography, cities, devices, browsers, OS, referrers).

Get account-wide analytics across all your links: totals, top links, and aggregate click breakdowns.

Get the QR code for a link, optionally branded with a colour, centre logo, and PNG/SVG format.

Check whether a destination URL is reachable (status + timing) before shortening it.

Append UTM campaign parameters to a URL. Returns the tagged URL (does not create a link).

Fetch Open Graph metadata (title, description, image, site name) for a URL — handy for auto-titling a link before shortening it.

List your tags (each with its link count).

Create a tag for organizing links.

Attach one or more existing tags to a link.

Detach one or more tags from a link.

List your folders (each with its link count).

Create a folder for grouping links.

Move one or more links into a folder.