Pricing
Linetrap is free for individual use. A Pro plan with larger limits and API access is planned for late 2026.
Everything the diagnostic tool does today, no account required.
- ✓ Paste JSON text — client-side parse
- ✓ Fetch a URL — server response inspection
- ✓ Pinpoint line and column of parse errors
- ✓ Plain-language error explanations
- ✓ 50 KB response body limit
- ✓ 15-second fetch timeout
- ✓ No account, no tracking, no storage
Larger body limits, longer timeout, and API access for team workflows.
- ✓ Everything in Free
- ✓ 500 KB response body limit Planned
- ✓ 30-second fetch timeout Planned
- ✓ API key for programmatic access Planned
- ✓ Usage tracking and monthly quota Planned
- No email alerts, no scheduled checks, no saved history
Subscribe to Pro
Demo checkout — no real payment is taken. This form simulates a subscription flow for demonstration purposes.
Demo subscription complete! This was a demonstration — no real payment was taken, no account was created. Pro features are not yet available. You can try the current product for free on the app page.
Frequently asked questions
Can I use Linetrap without an account?
Yes — for the Free plan. Linetrap is completely stateless: open the page, paste your input, get your answer, close the tab. No sign-up, no login, no account. The future Pro plan will require a lightweight account for API key management and usage tracking, but the Free tool works today with zero registration.
What data does Linetrap store?
Nothing. Pasted JSON text is parsed in your browser and never sent anywhere. Fetched URL content travels through the server to you and is never logged or stored. There is no database, no analytics, no tracking cookies.
When will Pro features be available?
Pro features such as larger body limits and API access are planned for late 2026. They are listed on this page to show the product roadmap, but no payment is currently accepted and no Pro accounts exist yet. The Free tool works today as described.
What happens if my target is behind Cloudflare?
Linetrap runs on Cloudflare Workers, which cannot open a connection back to its own network. Hosts fronted by Cloudflare will be reported as unreachable. This is a platform limitation that applies to all plans.