ToolForge

JSON Flattener

Flatten nested JSON into dot-path key=value pairs with array indexes and custom separators.

How to use

Paste JSON, pick a separator and array style to get flattened output.

Related Tools

AES Encrypt / DecryptEncrypt and decrypt text with AES-256-GCM using WebCrypto in your browser - nothing is uploaded. Caesar CipherEncrypt and decrypt text with the Caesar cipher - any shift 1-25, letters only, case preserved. Code128 Barcode GeneratorGenerate Code128 barcodes (Code B) with automatic checksum as SVG - for logistics labels and internal codes. Cookie FormatterParse Cookie strings to JSON/table with URL decoding, or build Cookie strings from JSON. CRC32 / Adler-32 ChecksumCompute CRC32 and Adler-32 checksums in hex and decimal for data integrity checks. Cron Expression ParserParse 5-field cron expressions into readable descriptions and the next N run times, with ranges, steps and lists.

Data is processed entirely in your browser; nothing is uploaded to our servers.