# Parse

Browse 31 online parse tools for working with structured data and files in your browser. Text inputs are not stored, and uploaded files are deleted after 6 hours.

> Canonical page: https://elysiatools.com/en/tags/parse

## Overview

Use this collection of 31 parse tools to process and work with supported data or file inputs through a browser interface, with no software installation required.

## Frequently asked questions

### What can I do with Parse tools?

Parse tools help you work with supported structured data and file inputs through browser-based workflows. Available operations vary by tool.

### Do I need to install software to use these tools?

No. You can access the tools through your browser, while processing runs on Elysia Tools servers.

### How is my data handled?

Text inputs are not stored. Uploaded files are automatically deleted after 6 hours, and processing runs on Elysia Tools servers.

## Tools

- [X.509 Certificate Decoder](https://elysiatools.com/en/tools/certificate-decoder): Parse an X.509 SSL/TLS certificate (paste PEM or upload .pem/.crt) and inspect subject, issuer, validity period with expiry status, public key, signature algorithm, serial, SANs, key usage and fingerprint. Like openssl x509 -text, visualised. Runs locally.
- [Changelog Extractor](https://elysiatools.com/en/tools/changelog-extractor): Parse and extract structured data from changelogs and release notes in multiple formats
- [Cron Expression Explainer](https://elysiatools.com/en/tools/cron-expression-explainer): Parse a 5-part / 6-part / Quartz cron expression into a plain-language schedule description, show the field-by-field breakdown, and list the next N execution times in any IANA timezone — with an AI-generated natural-language explanation in your language
- [Cron Expression Visualizer](https://elysiatools.com/en/tools/cron-expression-visualizer): Parse cron schedules, validate standard or Quartz syntax, and visualize the next execution times on a timeline and grouped calendar view
- [Docstring Extractor](https://elysiatools.com/en/tools/docstring-extractor): Extract and parse documentation from JavaScript/TypeScript, Python, and Java source code
- [Hosts File Editor](https://elysiatools.com/en/tools/hosts-file-editor): Parse, validate, and format hosts file entries
- [HTML to Markdown Converter](https://elysiatools.com/en/tools/html-to-markdown): Convert HTML content to Markdown format with customizable options using Turndown
- [IUPAC Organic Naming Tool](https://elysiatools.com/en/tools/iupac-organic-naming-tool): Parse SMILES, detect the senior functional group, find the longest carbon chain, and emit a teaching-oriented IUPAC name with E/Z and R/S hints.
- [JSON Key Extractor](https://elysiatools.com/en/tools/json-key-extractor): Extract all keys from JSON objects with multiple output formats. Perfect for analyzing JSON structure, documentation generation, and understanding complex nested objects.
- [JWK Generator & Parser](https://elysiatools.com/en/tools/jwk-generator): Generate JSON Web Keys (JWK) for RSA, EC (P-256/P-384/P-521/secp256k1), and OKP (Ed25519/Ed448/X25519/X448), or parse an existing JWK to inspect its parameters, thumbprint, and metadata
- [Log Parser - Apache/Nginx Access Log Parser](https://elysiatools.com/en/tools/log-parser): Parse Apache/Nginx access logs using regex patterns and extract structured data
- [Markdown to HTML Converter](https://elysiatools.com/en/tools/markdown-to-html): Convert Markdown text to HTML with customizable formatting options using Showdown
- [Named Group Tester](https://elysiatools.com/en/tools/named-group-tester): Parse and display named capture groups from regex patterns
- [Netrc Parser](https://elysiatools.com/en/tools/netrc-parser): Parse and convert Netrc file format to JSON
- [Network Packet Analyzer](https://elysiatools.com/en/tools/network-packet-analyzer): Parse pcap and basic pcapng captures, surface protocol hierarchy and session statistics, and export filtered packet summaries
- [User Agent Parser](https://elysiatools.com/en/tools/new-user-agent-parser): Parse User Agent strings to extract browser, OS, device, and engine information
- [Path Analyzer](https://elysiatools.com/en/tools/path-analyzer): Analyze file paths, identify Windows/Unix formats, extract components, and normalize paths
- [PDF Text Extractor](https://elysiatools.com/en/tools/pdf-text-extractor): Extract text content from PDF documents with support for page selection, formatting options, and multi-language processing
- [RSS / Atom Feed Markdown Summarizer](https://elysiatools.com/en/tools/rss-feed-markdown-summarizer): Fetch an RSS or Atom feed by URL (or paste raw XML), parse it, sort items by publish date, deduplicate, apply a time window, and output a clean Markdown summary
- [SSH Config Parser](https://elysiatools.com/en/tools/ssh-config-parser): Parse and convert SSH configuration file to JSON format
- [Tailwind Class to CSS Converter](https://elysiatools.com/en/tools/tailwind-class-to-css-converter): Parse Tailwind utility classes into equivalent plain CSS for non-Tailwind projects.
- [Terraform Plan Visualizer](https://elysiatools.com/en/tools/terraform-plan-visualizer): Parse Terraform plan JSON or text output, classify resource changes, and surface a dependency-oriented summary before apply
- [Text to CSV Converter](https://elysiatools.com/en/tools/text-to-csv): Convert various text formats to CSV with customizable parsing options
- [Text to JSON Converter](https://elysiatools.com/en/tools/text-to-json): Convert various text formats to JSON with customizable parsing options

## Related content

- [Parser](https://elysiatools.com/en/tags/parser): Browse 23 online parser tools to process, validate, convert, and manage parser data in your browser. Text inputs are not stored, and uploaded files are deleted after 6 hours.
- [Conversion](https://elysiatools.com/en/tags/conversion): Browse 369 online conversion tools for transforming data and files between supported formats. Use them in your browser with secure server-side processing.
- [Format Conversion](https://elysiatools.com/en/tags/format-conversion): Browse 142 format conversion tools for converting files and data between supported formats in your browser.
- [Text](https://elysiatools.com/en/tags/text): Browse 311 online text tools for processing, converting, validating, and managing text, strings, words, and characters in your browser.
- [JSON](https://elysiatools.com/en/tags/json): Browse 107 online JSON tools to validate, format, convert, and manage JSON data and files in your browser.
- [Markdown](https://elysiatools.com/en/tags/markdown): Browse 40 online Markdown tools to process, convert, validate, and manage Markdown and MD files. No software installation required.