Pricing
Not listed
Official monthly price not confirmed
- API
- Not confirmed
CORS-Tester
● Identity checkedAssistant · Vendor site 2026-10-04
CORS Tester is a browser-based tool on cors-error.dev for checking Cross-Origin Resource Sharing behavior on an API URL. You can send configurable GET, POST, PUT, DELETE, or OPTIONS requests with custom origins, headers, credentials, and bodies, then inspect preflight and response headers against a CORS checklist.
- Category
- Assistant
- Free access
- Not confirmed; the tester is offered as a public web tool without published subscription pricing on the page.
- API access
- Not confirmed
Is CORS-Tester right for you?
A good fit for
Developers and API testers who need to verify CORS headers, debug browser cross-origin failures, and validate API compliance quickly.
Before you choose
The page focuses on interactive browser testing and does not publish paid plans or account tiers.
CORS debugging in the browser
CORS Tester lets you enter an API URL and origin, run test requests, and review preflight and response headers with actionable CORS guidance.
What it can do
Features & capabilities
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| Configurable HTTP methods | The tester supports GET, POST, PUT, DELETE, and OPTIONS requests against a target API URL. | Facts sourced | 2026-10-04 |
| Origin and credentials controls | You can set the Origin header and optionally include credentials such as cookies or authorization headers. | Facts sourced | 2026-10-04 |
| Preflight inspection | Results show preflight OPTIONS response headers alongside the API server response headers with a CORS support checklist. | Facts sourced | 2026-10-04 |
Understand the total cost
CORS-Tester pricing & plans
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Frequently asked questions
What is CORS-Tester used for?
CORS Tester is a browser-based tool on cors-error.dev for checking Cross-Origin Resource Sharing behavior on an API URL. You can send configurable GET, POST, PUT, DELETE, or OPTIONS requests with custom origins, headers, credentials, and bodies, then inspect preflight and response headers against a CORS checklist.
Does CORS-Tester have a free plan?
Not confirmed; the tester is offered as a public web tool without published subscription pricing on the page.. This record does not confirm an ongoing free plan.
How much does CORS-Tester cost?
A listed monthly price has not been confirmed. See the plan cards for entitlements, billing commitments and seat minimums.
Can I use CORS-Tester through an API?
Not confirmed. API access and subscription access may have different terms; consult the linked sources.
What should I check before choosing it?
The page focuses on interactive browser testing and does not publish paid plans or account tiers.
Price history
No retained pricing changes yet. A current price alone does not establish a historical trend.
How this profile is supported
Identity and profile
Reviewed vendor source
Read original source ↗Facts apply to the named version and check date. Send a sourced correction if something changed.