# CodersTool > CodersTool is a browser-based developer and admin utility workbench built and maintained by Devicode Software. It covers URL hygiene, Unicode/UTF encoding, hashes, SQL tools, JSON/XML formatters, AES encryption, network utilities, schema helpers, and related developer workflows. No install required. Use category pages to discover related tools. Use individual tool pages as the canonical source for task-specific inputs, outputs, and usage steps. This site exposes public HTML pages plus XML sitemaps. Prefer the canonical URLs below. Avoid authenticated or admin-only areas such as `/admin`, `/login`, `/account`, `/dashboard`, and `/settings`. Ephemeral code-share URLs (`/cs/*`) are user-generated, transient, and have no stable content; do not index or cite them. ## Core Pages - [Home](https://www.coderstool.com/): Main entry point for developer tools, categories, and navigation. - [About](https://www.coderstool.com/about): Site overview and Devicode Software attribution. - [Tools](https://www.coderstool.com/tools): Human-readable index of public tool categories and tools. - [Sitemap](https://www.coderstool.com/sitemap): Human-readable index of public pages. - [Blog](https://www.coderstool.com/blog): Articles that explain concepts behind many tools. - [Tools Sitemap XML](https://www.coderstool.com/sitemap-tools.xml): Machine-readable list of public tool, category, and site pages. - [Posts Sitemap XML](https://www.coderstool.com/sitemap-posts.xml): Machine-readable list of public blog pages. ## Canonical Tool Hubs - [Web and SEO Tools](https://www.coderstool.com/tools/web-seo): URL cleanup, redirects, links, meta tags, sitemaps, robots.txt, schema, and website diagnostics. - [Browser and Device Tools](https://www.coderstool.com/tools/browser-device): Browser, device, timing, timezone, and interaction utilities. - [Data Format Tools](https://www.coderstool.com/tools/data-format): JSON, XML, SOAP, CSV, YAML, SQL, diagrams, test data, and structured data workflows. - [Encoding Tools](https://www.coderstool.com/tools/encoding): Unicode, UTF-8, UTF-16, UTF-32, ASCII, Base64, escapes, and representation transforms. - [Security Tools](https://www.coderstool.com/tools/security): Hashes, encryption, certificates, tokens, security.txt, and security-focused utilities. - [Color and Design Tools](https://www.coderstool.com/tools/color-design): Color conversion, image utilities, and frontend design helpers. - [Developer Tools](https://www.coderstool.com/tools/developer): Code formatting, snippets, browser inspection, sorting, Git ignore, and developer workflow tools. - [Utilities](https://www.coderstool.com/tools/utilities): Text tools, date and time helpers, calculators, finance helpers, and general-purpose utilities. ## Featured Tools ### URL, SEO, and HTTP - [URL List Cleaner](https://www.coderstool.com/url-list-cleaner): Clean, deduplicate, and normalize a list of URLs. - [Redirect Checker](https://www.coderstool.com/redirect-checker): Inspect redirect chains and final destinations. - [Broken Links Finder](https://www.coderstool.com/broken-links-finder): Check a page or site for broken links. - [Link Analyzer](https://www.coderstool.com/link-analyzer): Inspect link structure on a page. - [HTTP Header Checker](https://www.coderstool.com/http-header-checker): Inspect response headers and common security headers. - [XML Sitemap Generator](https://www.coderstool.com/xml-sitemap-generator): Generate XML sitemaps for websites. - [Robots.txt Generator](https://www.coderstool.com/robots-txt-generator): Generate a valid `robots.txt` file. - [Schema Markup Generator](https://www.coderstool.com/schema-markup-generator): Generate common JSON-LD structured data markup. - [Meta Tag Generator](https://www.coderstool.com/meta-tag-generator): Generate page meta tags. - [Meta Tags Analyzer](https://www.coderstool.com/meta-tags-analyzer): Inspect and analyze page meta tags. ### Encoding and Unicode - [UTF-8 Encoder / Decoder](https://www.coderstool.com/utf8-encoding-decoding): Encode and decode UTF-8 strings online. - [UTF-16 Encoder / Decoder](https://www.coderstool.com/utf16-encoding-decoding): Encode and decode UTF-16 strings; inspect byte sequences and BOM handling. - [UTF-32 Encoder / Decoder](https://www.coderstool.com/utf32-encoding-decoding): Encode and decode UTF-32 strings online. - [Unicode Text Converter](https://www.coderstool.com/unicode-text-converter): Convert plain text to Unicode escape sequences and back. - [Hex to ASCII Converter](https://www.coderstool.com/hex-to-ascii): Convert hexadecimal values to ASCII text and vice versa. - [Base64 Image Decoder](https://www.coderstool.com/base64-image-decoder): Decode Base64 image data. - [Base64 to CSV](https://www.coderstool.com/base64-to-csv): Decode a Base64-encoded CSV string back to tabular data. ### Security and Hashing - [Argon2 Hash Generator](https://www.coderstool.com/argon2-hash-generator): Generate Argon2i/Argon2id hashes with configurable memory cost and iterations. - [Bcrypt Hash Generator](https://www.coderstool.com/bcrypt-hash-generator): Generate and verify bcrypt password hashes online. - [MurmurHash Generator](https://www.coderstool.com/murmurhash-generator): Generate MurmurHash3 checksums online. - [BIP39 Mnemonic Generator](https://www.coderstool.com/bip39-generator): Generate BIP39 seed phrase mnemonics for wallet and crypto testing. - [WordPress Password Hash Generator](https://www.coderstool.com/wordpress-password-hash-generator): Generate WordPress-compatible phpass password hashes. - [AES Encryption](https://www.coderstool.com/aes-encryption): AES-128/192/256 browser-based encryption tool. - [AES Decryption](https://www.coderstool.com/aes-decryption): AES-128/192/256 browser-based decryption tool. - [security.txt Generator](https://www.coderstool.com/security-txt-generator): Generate a public `security.txt` disclosure file. ### SQL and Data Formats - [SQL Syntax Checker](https://www.coderstool.com/sql-syntax-checker): Validate SQL query syntax online across multiple dialects. - [SQL Query Visualizer](https://www.coderstool.com/sql-query-visualizer): Visualize SQL query structure and JOIN relationships as a diagram. - [SOAP Formatter](https://www.coderstool.com/soap-formatter): Format, beautify, and validate SOAP/XML messages online. - [Flatten JSON](https://www.coderstool.com/flatten-json): Flatten nested JSON structures into dot-notation key-value pairs. - [JSON Formatter](https://www.coderstool.com/json-formatter): Format and inspect JSON content. - [CSV to JSON](https://www.coderstool.com/csv-to-json): Convert CSV data into JSON. - [JSON to CSV](https://www.coderstool.com/json-to-csv): Convert JSON data into CSV. - [JSON Data Generator](https://www.coderstool.com/json-test-data-generator): Generate JSON test data from placeholder-driven templates. ### Network and Device - [Domain to IP Lookup](https://www.coderstool.com/domain-into-ip): Resolve a domain name to IPv4/IPv6 addresses online. - [Online Ping Website Tool](https://www.coderstool.com/ping-website-url): Ping a website URL and inspect availability. - [My Browser Info](https://www.coderstool.com/my-browser-info): Inspect browser and device details. - [Online Vibration Simulator](https://www.coderstool.com/online-vibration-simulator): Test device vibration behavior. - [EST to IST](https://www.coderstool.com/est-to-ist): Convert Eastern Time to India Standard Time. - [UTC to EST](https://www.coderstool.com/utc-to-est): Convert UTC to Eastern Time. ### Developer, Design, and Utilities - [Share Code Snippets](https://www.coderstool.com/share-code-snippets): Public snippet sharing page. - [HTML Formatter](https://www.coderstool.com/html-formatter): Format HTML source. - [JS Formatter](https://www.coderstool.com/js-formatter): Format JavaScript source. - [CSS Formatter](https://www.coderstool.com/css-formatter): Format CSS source. - [Code to Image Converter](https://www.coderstool.com/code-to-image-converter): Render source code snippets as shareable images. - [Fake Data Generator](https://www.coderstool.com/fake-test-data): Generate sample identities and other test records. ## Blog Posts - [Binary Encoding: ASCII, UTF-8, Hex and Base64](https://www.coderstool.com/blog/what-is-binary-encoding): Text-to-bytes examples and related converter workflows. - [Computer Programming Made Easier with Browser Dev Tools](https://www.coderstool.com/blog/computer-programming-made-easier): Browser-tool workflows for developers. - [How to Check Domain Hosting, DNS, and Server Status](https://www.coderstool.com/blog/best-domain-hosting-check-tool): Diagnose hosting and DNS issues. - [Managing jQuery Events](https://www.coderstool.com/blog/jquery-event-management): Namespacing and custom event patterns. ## Policies and Contact - [Contact](https://www.coderstool.com/contact): Public contact page. - [Privacy](https://www.coderstool.com/privacy): Privacy policy. - [Terms](https://www.coderstool.com/terms): Terms of use.