Clean, correct, and readable data
Half the battle when working with structured data is simply being able to read it. A minified JSON blob, a one-line SQL query, or an unindented XML document is technically valid but practically opaque. The formatters in this category re-indent and beautify your data so its structure becomes obvious, while the validators answer a different but equally important question: is this value actually correct?
Like every tool on djdata.io, these run entirely client-side. Your queries, payloads, and identifiers are processed in your browser and never sent anywhere — which matters when you’re formatting a SQL statement that references real schemas or validating customer IBANs.
Tools in this category
- JSON Formatter — Beautify, minify, and validate JSON.
- SQL Formatter — Indent and standardize SQL queries for readability.
- XML Formatter — Pretty-print and tidy XML documents.
- IBAN Validator — Check IBAN structure and checksum, country by country.
- BIC / SWIFT Validator — Verify the format of a bank identifier code.
- XML Validator — Validate XML, including against an XSD schema.
- SemVer Parser — Break a version string into its semantic components.
- SemVer Calculator — Compare versions and resolve range constraints.
- Markdown Preview — Render Markdown to HTML in real time.
Common use cases
Developers reach for these tools dozens of times a day: making an API response readable before debugging it, tidying a generated SQL query before adding it to a migration, confirming that a customer-supplied IBAN is well formed before storing it, checking that an XML file conforms to its schema, or reasoning about which package version satisfies a dependency range. Because formatting and validation are deterministic, you get an instant, reliable answer with no guesswork.
Frequently asked questions
Does formatting change my data? Formatters only adjust whitespace and layout — the underlying values stay identical. Validators never modify your input at all.
How does IBAN validation work? It checks the country-specific length and structure and verifies the mod-97 checksum, the same algorithm banks use. A valid format does not guarantee the account exists.
Is my SQL or JSON sent to a server? No. Everything is processed in your browser, so it’s safe to use with internal or production data.