Text and format
Regex, diffs, counters, and utilities to clean, transform, and compare content.
Archtools
Tool index
Each category groups related tools with localized routes, dedicated copy, SEO metadata, and internal links between compatible utilities.
Categories
Text and format
Regex, diffs, counters, and utilities to clean, transform, and compare content.
Browse category
Development and data
Converters, encoders, JWT utilities, and helpers for development and API workflows.
Browse category
Technical SEO
Quick audits, metadata, robots, sitemaps, and validation tools for SEOs and webmasters.
Browse category
Web infra
DNS, SSL, headers, RDAP, and infrastructure diagnostics for websites.
Browse category
Media and documents
QR, images, PDFs, and other utilities for digital assets and documents.
Browse category
Archtools
Start with the most useful tools
This index does more than list categories: it also links directly to concrete utilities so navigation and crawling prioritize valuable pages inside the catalog.
Development and data
Converters, encoders, JWT utilities, and helpers for development and API workflows.
Technical SEO
Quick audits, metadata, robots, sitemaps, and validation tools for SEOs and webmasters.
- Meta tags and Open Graph checker Extract title, description, canonical, robots, Open Graph, and Twitter Cards from a URL or HTML.
- Mini website audit Generate a concise technical SEO report with status, indexability, metadata, schema, and a final checklist.
- Redirect checker Show the full redirect chain, HTTP codes, hops, and final destination.
Web infra
DNS, SSL, headers, RDAP, and infrastructure diagnostics for websites.
Media and documents
QR, images, PDFs, and other utilities for digital assets and documents.
- Image optimizer and converter Convert images, resize them, and export common formats with basic compression.
- QR code generator Generate QR codes from text or URLs with PNG download and basic sizing options.
- UTM builder and validator Build URLs with UTM parameters, validate the structure, and copy the final URL.
Text and format
Regex, diffs, counters, and utilities to clean, transform, and compare content.
Regex tester
Test regular expressions, flags, captured groups, and replacements with instant feedback.
Open tool
JSON diff
Detect added, removed, or changed keys between two JSON documents.
Open tool
JSON formatter
Format, minify, and validate JSON instantly in the browser with readable output.
Open tool
Slug generator
Turn titles and phrases into clean SEO-friendly slugs with configurable separators.
Open tool
Text diff
Compare two text blocks and highlight insertions, deletions, and readable changes.
Open tool
Uppercase text converter
Switch text between uppercase, lowercase, and sentence case directly in the browser.
Open tool
Word counter
Count words, characters, and spaces instantly with a lightweight text tool.
Open tool
Development and data
Converters, encoders, JWT utilities, and helpers for development and API workflows.
CSV to JSON
Convert CSV to JSON with delimiter, quote, and header detection options.
Open tool
JSON to CSV
Convert JSON object arrays into CSV and download the ready-to-use output.
Open tool
JSON to XML
Convert compatible JSON into XML with basic structure and formatting options.
Open tool
JWT decoder
Inspect a JWT header and payload and convert exp, iat, and nbf into readable dates.
Open tool
XML to JSON
Parse XML and convert it into structured JSON with clear parsing errors.
Open tool
Base64 encoder and decoder
Convert text to and from Base64 with Unicode-safe browser-side processing.
Open tool
Password generator
Generate secure random passwords with adjustable length and character rules.
Open tool
Text to SHA-256
Create SHA-256 hashes in the browser for validation, testing, and integrity workflows.
Open tool
Timestamp converter
Convert Unix timestamps to local dates and back in seconds or milliseconds.
Open tool
URL encoder and decoder
Encode or decode URLs and query strings safely for APIs, links, and tracking parameters.
Open tool
UUID generator
Generate one or many UUID v4 values instantly and copy them for development workflows.
Open tool
Technical SEO
Quick audits, metadata, robots, sitemaps, and validation tools for SEOs and webmasters.
Meta tags and Open Graph checker
Extract title, description, canonical, robots, Open Graph, and Twitter Cards from a URL or HTML.
Open tool
Mini website audit
Generate a concise technical SEO report with status, indexability, metadata, schema, and a final checklist.
Open tool
Redirect checker
Show the full redirect chain, HTTP codes, hops, and final destination.
Open tool
Robots.txt tester
Check whether a URL is allowed or blocked by a robots.txt file for a specific user-agent.
Open tool
Sitemap inspector
Load a sitemap.xml or sitemap index, count URLs, and detect nested sitemaps or errors.
Open tool
Download website HTML
Fetch a page HTML response and download it as a file for technical review or SEO checks.
Open tool
Hreflang, canonical, and indexability checker
Analyze canonical, hreflang, meta robots, redirects, and estimated indexability.
Open tool
Structured data extractor
Extract JSON-LD, Microdata, and RDFa from a URL or HTML and summarize types and properties.
Open tool
Broken link checker
Crawl a URL and limited internal pages to find broken links, redirects, and anchor issues.
Open tool
Web infra
DNS, SSL, headers, RDAP, and infrastructure diagnostics for websites.
Media and documents
QR, images, PDFs, and other utilities for digital assets and documents.
Image optimizer and converter
Convert images, resize them, and export common formats with basic compression.
Open tool
QR code generator
Generate QR codes from text or URLs with PNG download and basic sizing options.
Open tool
UTM builder and validator
Build URLs with UTM parameters, validate the structure, and copy the final URL.
Open tool
PDF tools
Merge PDFs, split pages, or turn images into a PDF with a safe browser-based MVP.
Open tool