FileForge

Data Tools

Free online data tools: convert between CSV, JSON, XML, YAML and XLSX, format JSON, compute hashes and encode Base64 — all in your browser.

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Base64 Encode / Decode Convert text or files to Base64 and back online, right in your browser — with URL-safe output and file-to-DataURI
Unzip ZIP List every entry inside a ZIP and download files individually or all at once
Hash & Checksum Compute the MD5, SHA-1, SHA-256, SHA-384 or SHA-512 of a file online
URL Encode / Decode Percent-encode or decode text online: type plain text to get the encoded form, or decode percent-encoding back to text
Format JSON Beautify minified JSON into readable indentation or minify it back to one line online, with optional key sorting
Unit Converter Convert length, mass, temperature, time and data units online, with metric and imperial support
UUID Generator Create up to 100 UUID v4 values at once, with uppercase and no-hyphen options, then copy or download
Date Calculator Add or subtract years/months/days/weeks, find the days between two dates, or get the weekday of a date
GZIP Compress / Decompress Compress a file to
Password Generator Build strong random passwords from the character sets you choose, with an entropy readout
JWT Decoder Decode a JWT header, payload and signature locally with base64url — no signature verification and nothing is uploaded
Mortgage Calculator Monthly payment, total interest and total cost for equal-installment vs equal-principal plans
JSON to YAML Turn JSON into YAML with your preferred indent and optional key sorting, no line folding
AES Encrypt / Decrypt Encrypt and decrypt text with a password using AES-256-GCM online: PBKDF2 key derivation, random salt & IV, self-contained Base64 output
JSON to XML Build XML from a JSON object: keys become tags, @_ keys become attributes, special characters escaped
HMAC Sign Compute HMAC-SHA256 / SHA384 / SHA512 online: enter a message and key, get hex or Base64
CSV to XML The header row becomes tag names, delimiters are auto-detected, and quoting follows RFC 4180
Color Converter Paste any colour notation (HEX, RGB or HSL) and get every format back, one line per colour
Timestamp Converter Convert Unix timestamps (seconds / milliseconds) to ISO 8601 and back online, with multi-timezone display
IP Lookup Look up your public IPv4 / IPv6 address, geolocation and ISP online
CSV to JSON Convert CSV or TSV tables to JSON online with automatic delimiter detection and correct handling of quotes and line breaks
JSON to CSV Convert JSON arrays to CSV online: object arrays get headers from their keys, arrays of arrays export row by row, with strict RFC 4180 escaping
Screen test Cycle fullscreen solid red, green, blue, white and black to spot dead or stuck pixels, dust and backlight bleed — plus greyscale steps and a grid, with downloadable test images
Cron generator Choose each field visually and get a Linux crontab or Quartz expression instantly, with a plain explanation and the next five run times — or paste an existing expression to decode it
Excel to JSON Parse Excel sheets into JSON online: the header row becomes field names, with records / rows output shapes
XLSX to CSV Convert Excel workbooks (
XML to JSON Convert XML to JSON online: tags become keys, attributes are kept as @_-prefixed fields, and syntax errors report the exact line and column
YAML to JSON Convert YAML config to JSON online: nested maps, sequences, block scalars and common scalar types are handled; syntax errors report the line
CSV to Excel Convert CSV / TSV to Excel (XLSX) online: delimiter auto-detected, numbers become numeric cells, first row as header
ZIP Pack Pack several files into one ZIP archive online — choose store, normal or max compression, original names preserved
Base58 Encode / Decode Base58 (Bitcoin alphabet) encoding and decoding online: no 0OIl confusables, exact big-integer conversion — used by addresses, IPFS CIDs and keys
Base32 Encode / Decode RFC 4648 Base32 encoding and decoding online: the A–Z, 2–7 alphabet with automatic padding
Hex Converter Convert text to hexadecimal or restore hex to text online: accepts spaces, mixed case and 0x prefixes with forgiving parsing
Number Base Converter Switch between binary, octal, decimal and hex with prefix detection, exact big integers and batch input
Regex Tester Run a regex against sample text and see every match with positions and capture groups
Unicode Escape / Unescape Convert non-ASCII text to \uXXXX or \u{