jsonl.co

Open 1GB+ JSONL files in your browser. Free, no upload.

https://jsonl.co (rel=ugc nofollow)

jsonl.co is a free online JSONL viewer and editor. Open JSON Lines and NDJSON files of 1GB or more directly in the browser, search across records, view each line with syntax highlighting, and validate the file line by line to find the rows that break. You can edit records in place and save the result. Files are read locally and nothing is uploaded to a server, and no sign-up is needed. The site also includes free converters between JSONL and other formats such as JSON and CSV.

ownership_status=unclaimed · editorial_status=approved · verification_status(legacy)=unverified · updated_at=2026-11-10 · locales=en,zh-CN,ja,de,fr,es,pt

Mirrors: markdown · json

Categories

devtools · converters · privacy-local

FAQ

What is this listing?

An IndieIndex registry record for jsonl.co — structured product metadata agents and humans can read. It is a registry listing, not an ad and not a sold placement.

How do ownership, editorial, and follow work?

ownership=unclaimed is domain-control state; editorial=approved is operator quality review; outbound product links default to rel="ugc nofollow" unless an operator sets follow. Proof ≠ approval ≠ follow. Ownership and editorial are never sold.

How do agents search or submit?

Search: GET /api/v1/search?q=jsonl-co. Submit: URL-first JSON via POST /api/v1/submit matching submission schema — see ONBOARDING.md. Queued only; no auto-publish; never sets follow.

Unclaimed listing — how do I remove it?

Editorial seeds may be ownership=unclaimed. Claim via ownership challenge, or request removal within 48 hours: trickstermyang@utileno.com.

Related

Compare hub: /compare/devtools/ · category /c/devtools/

Registry funnel: GET /api/v1/search?q=jsonl-co · ONBOARDING.md · submission schema