Pricing
Start with a check. Scale with your workload.
Free hosted checks, subscriptions, and prepaid credits.
Free hosted
€0
- 5 shared checks / day
- 10 PDF pages / check
- 1 concurrent check
- PDFs up to 10 MB
- Resets at 00:00 UTC
- Download links and files expire after 24 hours
Team
€149 / month
- 2,000 checks / day
- 200 pages / check
- 4 concurrent checks
- 30 s of browser time per web scan, when the scanner is available
Business
€499 / month
- 10,000 checks / day
- 500 pages / check
- 8 concurrent checks
- 30 s of browser time per web scan, when the scanner is available
- Subscription
- For teams that integrate the API or SDKs. No per-check charge; instead each plan has fair-use caps (pages per document, checks in progress at a time, checks per day). Above a cap a request is refused with the reset time. Cancel any time; access runs to the end of the paid period.
- Credit pack
- For occasional checks. One credit is one accepted check of any kind (PDF, static HTML to PDF, web page or an approved reading-order correction). A pack works on its own or tops up a subscription.
Either way, a check that fails on our side is never charged, and a rejected or invalid request costs nothing.
Refunds: a check that fails on our side is never charged (its reservation is released). Purchases of unused credits can be refunded within 14 days by contacting support. Payments are processed by Stripe; Koldera never sees card details.
What you can use today
| Tier | What it includes | Limits |
|---|---|---|
| Free, no account | PDF checks (analyze, safe fix or basic structure tags, each to a copy) and static HTML to tagged PDF on this site. Checking whether single-page web scans are also available… | 5 checks per day per network location (UTC), one at a time, PDFs up to 10 MB / 10 pages. Download links and files expire after 24 hours; results stay readable in this browser for 24 hours from the same network location. |
| Organization | Projects, API keys and browser sessions for the SDKs; reading-order review and approved corrections; job history. | A subscription (fair-use caps per plan) or job credits from the packs above. Download links and files expire after 24 hours; job records and findings stay in the account. |
Full free-tier ruleThe shared-address caveat and the UTC reset
Without an account you can run five checks per day (PDF checks, web pages and HTML conversions combined, one at a time). The day resets at 00:00 UTC. The allowance is counted per public network address, so people sharing an office, campus or carrier network also share the five checks; it is not a personal quota and it cannot tell people on the same address apart.
What a result means
Automated validation can prove the presence of some barriers, never their absence. No result from Koldera is a PDF/UA or WCAG conformance certificate; each job states that manual review is required.
Sign in or create an account to manage projects, API keys and billing.