GEXNO / Guides / Choosing an Online JSON Tool: Formatting, Validation, Encoding and Encryption
Choosing an Online JSON Tool: Formatting, Validation, Encoding and Encryption
What to check when formatting JSON, validating syntax, converting to YAML/XML/CSV, running JSONPath queries or decoding JWTs online — and how to pick encoding and hashing tools.
Why keep data on your device
JSON often contains API endpoints, field rules or even access tokens. Uploading it to a third-party site for "formatting" hands production data to strangers. Local parsing in the browser has no latency and none of that risk.
What to look for in formatting and validation
Beyond indentation, at minimum look for: line/column positions for syntax errors, smooth handling of large files (streaming or Web Worker), a collapsible tree view, and one-click conversion to YAML / XML / CSV / Excel.
Encoding vs encryption
Base64 and URL encoding are encodings, not encryption — never use them to protect secrets. MD5 / SHA are fine for checksums but never store passwords with MD5. For symmetric encryption (AES) watch mode and padding; for asymmetric (RSA / SM2) mind key length and format. Passwords should be hashed with Bcrypt or Argon2.
Try it on GEXNO
Tools collects 101 JSON, encoding, encryption and hashing utilities that all run locally in your browser — data never leaves your device, no login required.