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 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 →To extract files from an EXE without installing software or executing code, parse the binary’s internal archive containers and resource sections using an in-browser EXE file extractor. This unpacks embedded payload archives, icons, bitmaps,…
Read the guide →How to Extract Tables and Columns from SQL DDL Scripts To extract tables, column lists, data types, default values, and primary key constraints from raw SQL DDL scripts without a live database connection, parse…
Read the guide →To convert XML to JSON in your browser, parse the XML markup string into an in-memory DOM Tree using JavaScript’s native DOMParser API, recursively traverse element nodes and text nodes, map XML attributes to…
Read the guide →To extract a color palette and custom variables from CSS stylesheets, parse the stylesheet source code using a client-side regex or Abstract Syntax Tree (AST) extractor like the CSS Color Extractor to scan hexadecimal,…
Read the guide →To convert cURL commands to Python or JavaScript, extract command-line flags like -X for HTTP methods, -H for headers, -d for payloads, and -u for authentication. Map target URLs into Python requests or httpx…
Read the guide →To parse and explain cron expressions, evaluate the 5 positional fields—minute, hour, day of month, month, and day of week—from left to right, translating special characters (*, ,, -, /) into plain-English schedules using…
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