About devsmiths

devsmiths is a small project building fast, modern, privacy-respecting developer tools. We started with a complete set of JSON tools — formatter, validator, tree viewer, repair, converter, diff, JSON-to-types — and we are growing the catalog from there.

Today the site covers: pretty-print and minify (JSON Formatter); error detection with line/column precision and warnings about duplicate keys and number precision (JSON Validator); a navigable tree with JSONPath, search, and type-aware previews (JSON Tree Viewer); heuristic repair of trailing commas, single quotes, comments, JSONP wrappers, and Python literals (JSON Repair); JSON ⇄ YAML / CSV / XML conversion (JSON Converter); structural and textual diffs (JSON Diff); and type-definition generation in eight languages (JSON to Types).

Alongside the tools we publish practical guides at /guides — how to parse JSON safely in JavaScript, JSON Schema for beginners, JSON Best Practices for REST APIs, and more.

Every tool runs entirely in your browser. The JSON you paste is never sent to our servers. There is no account to create. Analytics are documented and consent-gated where consent is required. The code that ships the site is small, modern, and audited for accessibility (WCAG AA contrast, keyboard support, screen-reader labels).

Editorial content is original and maintained — when we update an article we bump the "updated" date on it.

The site is operated under the trading name devsmiths. We are not currently a registered legal entity; if that changes we will update this page with the entity name and registered details.

Reach us at sky904567@gmail.com. We read every message.