CSVJSON
Free, open-source and browser-based developer data conversion suite
Product node overview & trust baseline
Operator provenance, privacy baseline and site-wide pricing belong directly to the product node and are inherited across linked task edgesCSVJSON (created in 2013 by Martin Balboni, maintained open-source on GitHub by FlatFilers) is an established browser-based data format conversion suite for developers. It offers fast bi-directional conversions between CSV, TSV, JSON, JSONL, SQL, and TypeScript, alongside JSON validation and Markdown table parsing. The project is 100% free, open-source, and ad-free, executing entirely within local browser memory without transmitting payload data to external servers, delivering exceptional developer data privacy.
Canada / Open Source Community · Established in 2013
Provenance baseline: 16/20 · Stably maintained open-source since 2013 with complete public transparency on GitHub.
All conversion and beautification utilities 100% free and open source with no paywalls or ads.
Pricing transparency baseline: 35/35 · Cancellation:
Data is parsed entirely in local browser memory without server-side retention; discarded upon closing.
No third-party services listed in this record; this is not proof that none exist.
Product-level pricing & rules baseline
Verified plans, billing periods and cancellation terms owned by this product node; task-specific credit costs and free export limits are detailed per capability edge belowCSVJSON client-side developer data conversion toolkit full free access · 2026-10-31
Bi-directional conversion across CSV, TSV, JSON, JSONL, SQL, TypeScript, and Markdown tables；Massive dataset conversions limited only by local browser memory；Permanently free, no renewal；Perpetual access
1 plan / billing-period records, all listed; — means that period is not recorded.
All conversion and beautification utilities 100% free and open source with no paywalls or ads.
Cancellation, sources & verification record
Cancellation and refund terms unverified
CSVJSON Official Homepage & Converter ↗ · 2026-10-31 Capture 1 ↗
Archived official pricing sources: CSVJSON Official Homepage & Converter (2026-10-31) [text snapshot ↗]
Capability map & linked task edges
Whenever a capability passes fixed-fixture testing, an edge is automatically linked between this product node and the task topic for horizontal comparison.
This product node has a verified operator, privacy, and pricing baseline, but currently has no scored task edges with a free native export. See the discovered capabilities or paywall-blocked test records below.
Tested task edges (with scores and native artifacts) are strictly separated from discovered untested capabilities (unscored).
Developer & citation kit · Claim updates, request benchmarks & embed verified badges
Product developers and writers can embed these SVG badges in official websites, GitHub READMEs or documentation, or use the channels below to sync product-wide plans and capabilities.
[](https://realtest.org/tools/csvjson.com/) <a href="https://realtest.org/tools/csvjson.com/"><img src="https://realtest.org/badges/csvjson.com.svg" alt="CSVJSON — RealTest" height="24" /></a>