Thirty-eight of the forty-two checks read the ZPL and cost a parse, so they are not metered. Rendering a label is the one thing here with a real per-request cost, so that is the thing you pay for. The web tool stays free and needs no account.
$0no signup
The whole linter, in the browser, with no account.
Rate-limited, not metered
60 checks and 12 renders per minute
$49/month
For putting the checks in front of a machine instead of a person.
10,000 rendered labels a month
300 checks and 120 renders per minute
1 printer, then $9 each
$149/month
For labels that have to keep working after the person who wrote them moved on.
50,000 rendered labels a month
600 checks and 300 renders per minute
5 printers, then $9 each
$349/month
For vendors rendering labels on behalf of their own customers.
200,000 rendered labels a month
1,200 checks and 600 renders per minute
25 printers, then $9 each
From $199/month, published. The whole engine — all 43 checks, the renderer, the API, regression suites — in containers you run. No label ever leaves your network, and neither does anything else: it never contacts us, not even to check your licence. Your licence is a signed file verified against a key inside the image, so there is no activation call and no phone-home. It runs air-gapped, which we test by running it that way.
Delivered as a signed offline bundle you install with docker load — no registry access needed, because the networks that need this edition most are usually the ones that cannot reach a registry. There is no checkout for it yet; get in touch and we will send the bundle and a licence.
render: false and you get 39 of the 43 checks for no render quota at all. The four that need pixels are the geometry rules — quiet zones and overlap.The free tool is the same engine. Paste a label and see whether it tells you anything you did not know.
Check a label