Practical guides on getting data out of files — PDFs, images, archives and Windows installers — from the people who build the free tools.
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 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 links, headings, and images from a Markdown file, parse the CommonMark syntax delimiters using client-side regular expressions or an Abstract Syntax Tree (AST) parser. Hyperlinks are isolated from [text](url) patterns, images from…
Read the guide →To extract query parameters from a URL, separate the base web address from the query string following the question mark (?), then split each key-value pair at ampersand (&) delimiters. Browser-based local parsing decodes…
Read the guide →To extract data from a YAML file, parse the document structure into key-value pairs or convert the YAML object directly into JSON or CSV tabular format. YAML relies on strict indentation levels rather than…
Read the guide →To encode HTML entities, replace reserved syntax characters such as <, >, &, ", and ' with named or numeric character references (<, >, &, ", ') to prevent markup syntax corruption and Cross-Site…
Read the guide →To convert string casing between camelCase, snake_case, PascalCase, kebab-case, and CONSTANT_CASE, tokenise the source identifier by splitting at word boundaries using regex pattern /([a-z0-9])([A-Z])|[\s_\-]+/g, normalise all extracted word tokens to lowercase, and join them…
Read the guide →To decode a Base64 string in your browser, convert the 6-bit ASCII characters back into 8-bit binary byte arrays using the RFC 4648 index table and decode the resulting bytes into UTF-8 text using…
Read the guide →To convert WebVTT (.vtt) subtitles to SRT format or plain text transcripts, strip the mandatory WEBVTT header signature, replace full-stop millisecond delimiters (.) with comma separators (,), generate numeric cue sequence indices, and remove…
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