Changelog

recent updates to jsontoolskit.org

28 July 2026 — 41 new tools (30 → 84)

• Tabular targets (6): SQL INSERT and CREATE TABLE for Postgres / MySQL / SQLite, HTML table, Markdown table, TSV ↔ TSV → JSON.
• Config formats (8): INI, .env, Java .properties, query strings — each with its reverse direction on a page of its own.
• Relaxed dialects (3): JSONC → JSON (tsconfig-style comments, with a string-aware stripper), JSON5 → JSON, HTML table → JSON.
• Ten new code-generation targets: Rust, Java, C#, Kotlin, Swift, Dart, PHP, GraphQL SDL, proto3, Avro. All share one inference pass, so passing an array of records marks optional fields correctly everywhere.
• Transforms (6): key case conversion with collision warnings, bulk rename, remove nulls with container pruning, dedupe, filter by condition, array ↔ object reshaping.
• Standards tooling (3): RFC 8785 canonicalisation with an in-browser SHA-256, RFC 6901 pointer evaluation, full path listing in three notations.
• Schema tooling (4): schema diff with breaking-change labels, draft-04 / 06 / 07 → 2020-12 migration, $ref bundling, Schema → OpenAPI 3.0 / 3.1.
• JWT decoder — header, claims, readable timestamps, expiry and alg: none warnings. It deliberately does not verify signatures; that needs a key, which should never be pasted into a web page.
• Structured data on every page. SoftwareApplication, BreadcrumbList, HowTo and FAQPage markup is now generated automatically from each page's own content, so the how-to steps and FAQ you read are exactly what search engines see. Every tool page also gained a contextual Related tools block.
• The nav, footer, homepage grid and sitemap are all generated from one registry now — a new tool cannot be added to the menu and forgotten in the sitemap.

20 May 2026 — initial launch

• 30 JSON tools across eight mega-menu categories — Format / Validate, Convert, Transform, Query / Explore, Diff / Patch, JSON Schema, Generate types, Inspect.
• Modern specs first-class. JSON Schema 2020-12 default, RFC 9535 JSONPath, RFC 6902 / 7396 patches.
• Format / Validate (5): Formatter, Minifier, Validator, Repair, Stringify.
• Convert (12): JSON ↔ CSV, YAML, XML, TOML, NDJSON, Base64.
• Transform (7): Sort keys, Flatten / unflatten, Deep merge, Extract, Escape / unescape.
• Query / Explore (4): jq playground, JSONPath tester, Tree viewer, Graph view.
• Diff / Patch (3): Diff, JSON Patch, Merge Patch.
• JSON Schema (6): Generator, Validator, Visualizer, Faker, Schema → types, OpenAPI extract.
• Generate types (4): JSON → TS, Go, Python, Zod.
• Inspect (2): Size analyzer, Stats.
• Sample JSON in datasets.