Text and developer tools
Format JSON, convert encodings, inspect timestamps, hashes, and developer text.
Subcategories
This category is split by real user workflows so each tool set is easier to scan.
Format JSON, convert encodings, inspect timestamps, hashes, and developer text.
JSON and schema8 toolsJSON formatting, diffing, path viewing, JSON5, and schema generation or validation.
Markup, config and SQL12 toolsYAML, XML, CSV, INI, TOML, MessagePack, HTML entities, Markdown, SQL, and ENV cleanup.
URL and web codecs4 toolsURL encoding, URL parsing, HTTP status codes, and QR codes.
Bases, binary and Unicode8 toolsBase64, string hex/binary, arbitrary bases, number bases, Unicode, and Punycode.
Timestamps and colors2 toolsTimestamp conversion and color format conversion.
Text analysis, diff and extraction5 toolsWord counts, frequency, text diff, regex testing, and extraction.
Text cleanup and batch editing10 toolsDedupe, sort, case, line numbers, replace, filter, reverse, shuffle, and join.
Random and sequence generators3 toolsUUID, random number, and sequence generation.
Hashes, checksums and signatures5 toolsText/file hashes, MD5, checksums, and HMAC signatures.
Auth, passwords and permissions6 toolsBasic Auth, JWT, TOTP, permissions, password strength, and random passwords.
Developer schedule expressions1 toolsCron expression lookup, explanation, and next run times.
Morse and classic ciphers3 toolsMorse code, Caesar cipher, and Vigenere cipher.
JSON and schema
JSON formatting, diffing, path viewing, JSON5, and schema generation or validation.
JSON Schema generator
Infer a JSON Schema draft from example JSON so you can model payloads, configs, and interface docs faster.
LookupToolChakanJSON formatter
Use this json formatter tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanJSON deep diff
Use this json deep diff tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanJSON5 formatter and validator
Use this json5 formatter and validator tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanJSONPath viewer
Use this jsonpath viewer tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanJSON to Markdown table converter
Use this json to markdown table converter tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanJSON key renamer
Rename JSON keys in bulk with naming-style conversion or custom mapping rules, with nested object and array support.
LookupToolChakanJSON Schema validator
Use this json schema validator tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanMarkup, config and SQL
YAML, XML, CSV, INI, TOML, MessagePack, HTML entities, Markdown, SQL, and ENV cleanup.
YAML and JSON converter
Convert YAML to JSON or JSON to YAML in the browser for configs, API examples, and documentation cleanup.
LookupToolChakanXML and JSON converter
Convert XML to JSON or JSON to XML for API responses, legacy data, and configuration inspection.
LookupToolChakanCSV and JSON converter
Convert CSV to JSON or JSON to CSV in the browser with delimiter detection, header handling, and preview rows for imports and docs.
LookupToolChakanCSV table viewer and validator
Preview CSV as a table and validate delimiter, headers, empty rows, duplicate headers, and uneven column counts in the browser.
LookupToolChakanJSONL and JSON converter
Convert JSON Lines to a JSON array or JSON arrays to JSONL in the browser, with per-line validation for logs, datasets, and batch APIs.
LookupToolChakanINI and JSON converter
Convert INI to JSON or JSON to INI in the browser with section support, duplicate-key diagnostics, and config cleanup hints.
LookupToolChakanTOML and JSON converter
Convert TOML to JSON or JSON to TOML in the browser with table, array, and scalar summaries for config cleanup.
LookupToolChakanMessagePack and JSON converter
Encode JSON to MessagePack HEX or decode MessagePack HEX back into readable JSON.
LookupToolChakanHTML entity codec
Use this html entity codec tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanMarkdown and HTML viewer
Use this markdown and html viewer tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanSQL formatter
Use this sql formatter tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakan.env formatter
Format .env environment variable text and inspect normalized key/value pairs, duplicates, and suspicious lines.
LookupToolChakanURL and web codecs
URL encoding, URL parsing, HTTP status codes, and QR codes.
URL encode and decode
Use this url encode and decode tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanURL parser
Use this url parser tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanHTTP status code lookup
Use this http status code lookup tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanQR code generator
Use this qr code generator tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanBases, binary and Unicode
Base64, string hex/binary, arbitrary bases, number bases, Unicode, and Punycode.
Base64 encode and decode
Use this base64 encode and decode tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanString HEX converter
Use this string hex converter tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanString binary converter
Use this string binary converter tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanBase32 and Base58 codec
Encode text to Base32 or Base58, and decode Base32/Base58 values with a HEX byte preview.
LookupToolChakanNumber base converter
Use this number base converter tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanUnicode codec
Use this unicode codec tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanString escape and unescape converter
Escape or unescape strings for JSON, JavaScript, HTML, regex, SQL, and CSV contexts locally in the browser.
LookupToolChakanPunycode and UTF-8 viewer
Use this punycode and utf-8 viewer tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanTimestamps and colors
Timestamp conversion and color format conversion.
Text analysis, diff and extraction
Word counts, frequency, text diff, regex testing, and extraction.
Text diff viewer
Use this text diff viewer tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanWord count
Use this word count tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanWord frequency
Use this word frequency tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanRegex tester
Use this regex tester tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanText extractor
Use this text extractor tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanText cleanup and batch editing
Dedupe, sort, case, line numbers, replace, filter, reverse, shuffle, and join.
Text dedupe
Use this text dedupe tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanText sorter
Use this text sorter tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanText case converter
Use this text case converter tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanFullwidth and halfwidth converter
Convert fullwidth and halfwidth characters for OCR cleanup, spreadsheet imports, deduplication, and mixed Chinese-English text normalization.
LookupToolChakanText line numbering
Use this text line numbering tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanText replace
Use this text replace tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanText filter
Use this text filter tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanText reverse
Use this text reverse tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanText shuffle
Use this text shuffle tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanJoin lines
Use this join lines tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanRandom and sequence generators
UUID, random number, and sequence generation.
UUID generator
Use this uuid generator tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanRandom number generator
Use this random number generator tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanSequence generator
Use this sequence generator tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanHashes, checksums and signatures
Text/file hashes, MD5, checksums, and HMAC signatures.
SHA-256 hash viewer
Use this sha-256 hash viewer tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanMD5 hash viewer
Use this md5 hash viewer tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanFile hash checker
Use this file hash checker tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanCRC/BCC/LRC checksum calculator
Use this crc/bcc/lrc checksum calculator tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanHMAC calculator
Use this hmac calculator tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanAuth, passwords and permissions
Basic Auth, JWT, TOTP, permissions, password strength, and random passwords.
Basic Auth encoder and decoder
Generate or decode HTTP Basic Authentication headers locally, with a reminder that Basic Auth is not encryption.
LookupToolChakanChmod permission generator
Convert Linux chmod numeric permissions and rwx symbols for server and deployment checks.
LookupToolChakanOTP and TOTP generator
Generate a current TOTP code from a Base32 secret locally in the browser for temporary debugging.
LookupToolChakanJWT decoder
Use this jwt decoder tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanPassword strength checker
Use this password strength checker tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanRandom password generator
Generate a secure random password or a memorable passphrase with configurable length, numbers, and symbols in your browser.
LookupToolChakanDeveloper schedule expressions
Cron expression lookup, explanation, and next run times.
Morse and classic ciphers
Morse code, Caesar cipher, and Vigenere cipher.
Morse code translator
Translate English letters and numbers to Morse code, or decode Morse code back to text.
LookupToolChakanCaesar cipher viewer
Inspect Caesar cipher encryption and decryption with a configurable shift for classical cipher learning.
LookupToolChakanVigenere cipher viewer
Inspect Vigenere cipher encryption and decryption with a keyword for classical cipher learning.
LookupToolChakan