Find the editor metadata, long decimals and unused defs bloating an SVG, with the bytes they cost

SVG bloat checkFreeFor developers and designers

25/day

free runs a day, no sign-in.

Before: what you give it

The example input, as typed in. You paste text, CSS, markup or notes.

<?xml version="1.0" encoding="UTF-8"?><!-- Generator: Sketch 59 --><svg xmlns="http://www.w3.org/2000/svg" xmlns:sketch="http://www.bohemiancoding.com/sketch/ns" viewBox="0 0 24 24"><title>Created with Sketch.</title><metadata>x</metadata><defs><linearGradient id="g1"><stop offset="0"/></linearGradient></defs><g id="Layer_1" fill-rule="nonzero"><g><path d="M12.123456 2.987654L2.111111 22.000001H22.5z" opacity="1"/></g><g display="none"><circle r="2"/></g></g></svg>

After: what comes back

The first lines of a real run on that input. Nothing here is edited by hand.

SVG OPTIMISATION HINTS
Size: 469 bytes. Measurable text savings from the listed items: about 79 bytes (17% of the file), a rough sum that ignores gzip.
Findings: 0 high, 3 medium, 7 low, 0 info

[MEDIUM] Editor metadata: 3 editor-specific attribute or element marker(s)
  Inkscape, Sodipodi, Sketch, Illustrator and Figma leave namespaces, metadata and default ids behind.
  Seen in: xmlns:sketch= | <metadata | id="Layer_1"
  Fix: Run through SVGO or SVGOMG with default plugins, then re-check that the drawing is unchanged.

[MEDIUM] Hidden content: 1 hidden element
  Invisible shapes still ship in the file.
  Seen in: <g>
  Fix: Delete unless a script toggles them.
... full output on the tool page

What you get

Findings by severity and a rough byte saving from the measurable items

What it cannot do

It lists the bloat and does not rewrite or optimise the file; the saving is a rough sum that ignores gzip.

Who it is for

Developers
Designers

Free and Pro

Free	25 runs a day per IP address, up to 100,000 characters a run.
Pro	No daily limit, 300 requests a minute, up to 200,000 characters a run.

What each plan includes

Use it from your assistant

The tool is called check_svg_bloat. Connect the server once, then ask for it by name or just describe the job. Install steps for each app.

claude mcp add --transport http designers https://designers.allthepossibles.com/mcp

curl -X POST https://designers.allthepossibles.com/api/svg-optimize-hints -H 'content-type: application/json' -d '{"svg":"<?xml version=\"1.0\" encoding=\"UTF-8\"?><!-- Generator: Sketch 59 --><svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:sketch=\"http://www.bohemiancoding.com/sketch/ns\" viewBox=\"0 0 24 24\"><title>Created with Sketch.</title><metadata>x</metadata><defs><linearGradient id=\"g1\"><stop offset=\"0\"/></linearGradient></defs><g id=\"Layer_1\" fill-rule=\"nonzero\"><g><path d=\"M12.123456 2.987654L2.111111 22.000001H22.5z\" opacity=\"1\"/></g><g display=\"none\"><circle r=\"2\"/></g></g></svg>"}'

Try it here

The form starts with the same example input, so you can run it first and then swap in your own.

Paste SVG source