Practical guides on getting data out of files — PDFs, images, archives and Windows installers — from the people who build the free tools.
To decode a JSON Web Token (JWT) in your browser, split its three period-delimited Base64URL strings—header, payload, and signature—and decode the Base64URL data into JSON objects. You can decode JWTs securely in real time…
Read the guide →To extract client IP addresses and custom fields from server log files, parse raw Nginx or Apache access logs using regular expressions or client-side streaming tools like the Log Field Extractor to isolate IP…
Read the guide →To convert a JSON array or object to a CSV table, parse the key-value structures, flatten nested objects into dot-notation column headers (such as user.address.city), normalize heterogeneous array schemas across all records, escape reserved…
Read the guide →To convert SRT subtitles to plain text, strip the numeric sequence indices, timecode block markers (00:00:00,000 –> 00:00:00,000), and HTML formatting tags using an automated browser utility like the SRT Text Extractor. This processes…
Read the guide →To read a PEM certificate file, you must decode its Base64 container to access the underlying ASN.1-structured X.509 data, which exposes essential cryptographic metadata such as subject identity, issuer details, validity dates, and public…
Read the guide →How to Extract Data from a SQL File Without a Database To extract data from a SQL dump file (.sql) without installing or running a database server like MySQL or PostgreSQL, parse the text…
Read the guide →To convert Markdown tables to CSV, parse the GitHub Flavored Markdown (GFM) pipe syntax (|), strip the header alignment delimiter row (| — |), unescape pipe characters (\|), handle inline markup formatting, and serialize…
Read the guide →In a log file, an IPv4 address looks like 203.0.113.45 — four numbers separated by dots — while an IPv6 address looks like 2001:db8::1 — groups of hex separated by colons, often shortened with…
Read the guide →Extracting email addresses from text means identifying email-like strings inside a block of text, collecting the matching addresses, removing duplicates, and separating useful results from surrounding content. If you already have the text, you…
Read the guide →Data extraction is the process of pulling specific pieces of information — text, numbers, tables, images, or metadata — out of a file or data source and turning them into a clean, structured output…
Read the guide →Every tool runs in your browser and never uploads your files. Browse the full tool directory →