DevToolsHub

Site map

All pages on DevToolsHub. XML sitemap for crawlers: /sitemap.xml

Main pages

Tool categories

  • Format & convert tools — Free online format and convert tools: JSON formatter, XML prettifier, YAML↔JSON,…
  • Encode & security tools — Free encode and security tools online: Base64 encoder, URL encoder, MD5/SHA hash…
  • Dev utility tools — Free developer utilities online: regex tester, cron generator, color picker, QR …

Format & convert

Structure, markup, and data conversion

  • JSON Formatter — Validate, prettify, minify, and view JSON in tree format.
  • XML Formatter — Validate, prettify, and minify XML. Share via URL. No signup required.
  • YAML / JSON — Convert YAML to JSON or JSON to YAML. Copy, download, share via URL.
  • CSV / JSON — Convert CSV to JSON or JSON to CSV. Delimiters, headers, shareable URL, download.
  • Markdown Preview — Live Markdown editor with rendered and HTML view. Copy HTML, share via URL. GFM supported.
  • HTML Entities — Escape and unescape HTML entities; optional full numeric encoding. Shareable URLs.
  • Text Diff — Compare two texts. Unified or side-by-side diff. Highlights and shareable URL.
  • Lorem Ipsum — Paragraphs, words, sentences, or lists. Custom length, copy, download .txt, share URL.

Encode & security

Encoding, tokens, keys, and certificates

  • Base64 Encode / Decode — Encode text or files to Base64, decode to text or download as file.
  • URL Encode / Decode — Percent-encode text for URLs or decode URL-encoded strings. Shareable URL.
  • Hash Generator — Generate MD5, SHA-1, and SHA-256 hashes from text. Copy or share via URL.
  • JWT Decoder — Decode JWT header and payload to JSON. View exp, iat. Shareable URL.
  • PEM / Certificate Decoder — Decode SSL and X.509 PEM certificates. Subject, issuer, validity, SAN, and more.
  • Password Generator — Strong random passwords. Length 8–64, character sets, shareable URL.
  • UUID Generator — Generate UUID v4 online. Copy one or many, share URL with count.

Dev utilities

Patterns, time, network, and misc tools

  • Regex Tester — Live match highlighting, match list, and line-by-line test strings.
  • Color Picker — Pick a color and convert between HEX, RGB, and HSL. Copy values or share via URL.
  • Cron Generator — Build cron schedules with presets or custom syntax. Next run times and share via URL.
  • QR Code Generator — Create QR codes from text or URLs. Size options, download PNG, share via URL.
  • Unix Timestamp — Convert epoch time to date or date to timestamp. Seconds and milliseconds.
  • User-Agent Parser — Parse your User-Agent to browser, OS, and device type. Share via URL.
  • What is My IP — Check your public IPv4 address instantly. No signup. Copy or share this page.

Guides