Practical guides on getting data out of files — PDFs, images, archives and Windows installers — from the people who build the free tools.
To calculate IPv4 CIDR subnets and extract usable IP address lists, perform bitwise AND operations between the IP address and its subnet mask to isolate the network address, derive the broadcast boundary from host…
Read the guide →To convert JSON Lines (JSONL) and NDJSON datasets into CSV tables or JSON arrays without server uploads, parse each newline-separated entry as an independent RFC 8259 JSON record, flatten nested hierarchies into dot-notation columns…
Read the guide →To open Outlook .msg files and extract attachments on macOS, Linux, or ChromeOS without purchasing Microsoft Office, use a client-side free online MSG viewer. It parses Compound File Binary Format (CFBF) structures and MAPI…
Read the guide →To convert a hex dump into plain text and ASCII strings, parse the two-character hexadecimal byte pairs (0x00–0xFF), strip memory offset addresses, and decode the resulting byte sequence into UTF-8 or ASCII characters using…
Read the guide →To convert TOML configuration files to JSON and YAML without server uploads, parse the TOML syntax tree into typed data nodes, map tables and table arrays to structured hierarchies, and serialise the output to…
Read the guide →To extract environment variables and keys from INI and .ENV files, parse the raw text lines into structured key-value pairs, split section headers into distinct namespace objects, and export the resulting dataset to JSON…
Read the guide →To convert TSV tab-delimited files into CSV or JSON, parse each line across horizontal tab characters (\t), normalise field delimiters according to RFC 4180 escaping rules for CSV, map row values to header keys…
Read the guide →To extract embedded album art and ID3 metadata from MP3 files, read the binary audio file as an ArrayBuffer, locate the ID3v2 tag header, parse the Attached Picture (APIC) frame to isolate the binary…
Read the guide →To extract clean plain text and separate chapters from EPUB files without DRM lock-in, unzip the EPUB container, parse the Open Package Format (OPF) spine to determine sequential chapter order, and strip XHTML markup…
Read the guide →To open and extract files from a Windows EXE on macOS or ChromeOS without installing virtual machines, Wine, or emulation layers, deconstruct the binary using a client-side online EXE extractor that parses self-extracting archive…
Read the guide →Every tool runs in your browser and never uploads your files. Browse the full tool directory →