Thumbor URL Explorer

Paste a thumbor URL to start Or open the panel and fill in a host and an image URL. Everything is parsed locally — nothing is sent anywhere except to the host you name. \ panel · 0 fit · 1 100% · c compare

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Source

Thumbor host

Image URL decoded — the origin image

Security segment

percent-encode

This URL is signed with an HMAC. Any change invalidates the signature and the server will reject it. Switch the security segment to unsafe to experiment — only works if the server allows unsafe URLs.

Geometry

Fit mode

Width 0 = auto

Height 0 = auto

flip horizontal flip vertical smart crop meta (JSON)

Horizontal align

Vertical align

Trim removes a uniform border

Manual crop left×top:right×bottom, source pixels

Pick a region on the source drag a box

Filters

Filters run in order, top to bottom. Drag the ⠿ handle to reorder.