Title: DevDunia — 100+ Free Developer Tools
Open Graph Title: DevDunia — 100+ Free Developer Tools
Description: 100+ free developer tools in comic-book style. Encode, decode, format, generate, test — all in your browser. No signup, no server, instant results.
Open Graph Description: 100+ free developer tools. No login, no server, instant results.
Opengraph URL: https://devdunia.com/
Domain: devdunia.com
| og:type | website |
| og:image | https://devdunia.com/images/logo.png |
| twitter:card | summary_large_image |
Links:
| ⚡ START EXPLORING | https://devdunia.com#encoders |
| ★ STAR ON GITHUB | https://github.com/echobash/devdunia |
| 🔧 Encoders | https://devdunia.com#encoders |
| 🛡 Security | https://devdunia.com#security |
| ⚡ Generators | https://devdunia.com#generators |
| 🛠 Dev Tools | https://devdunia.com#devtools |
| 🌐 Network | https://devdunia.com#network |
| 🔍 DNS Tools | https://devdunia.com#dns |
| 💡 How X Works | https://devdunia.com#how |
| 📝 Text | https://devdunia.com#text |
| 🗄 Database | https://devdunia.com#database |
| 🐍 Python | https://devdunia.com#python |
| 📤 Base64 Encoder Encode text or binary data to Base64 format → | https://devdunia.com/base64-encoder.html |
| 📥 Base64 Decoder Decode Base64 strings back to plain text → | https://devdunia.com/base64-decoder.html |
| 📤 Base62 Encoder Encode numbers to compact Base62 alphanumeric strings → | https://devdunia.com/base62-encoder.html |
| 📥 Base62 Decoder Decode Base62 strings back to their numeric value → | https://devdunia.com/base62-decoder.html |
| ₿ Base58 Encoder Bitcoin/IPFS standard Base58 encoding — no ambiguous chars → | https://devdunia.com/base58-encoder.html |
| ₿ Base58 Decoder Decode Base58 encoded strings back to plain text → | https://devdunia.com/base58-decoder.html |
| 🔗 URL Encoder Percent-encode URLs and query parameters safely → | https://devdunia.com/url-encoder.html |
| 🔓 URL Decoder Decode percent-encoded URLs back to readable form → | https://devdunia.com/url-decoder.html |
| 🎫 JWT Decoder Decode and inspect JWT tokens — header, payload, claims → | https://devdunia.com/jwt-decoder.html |
| ✨ JSON Beautifier Format and pretty-print JSON with syntax highlighting → | https://devdunia.com/json-beautifier.html |
| 📦 JSON Minifier Compress JSON by stripping all whitespace instantly → | https://devdunia.com/json-minifier.html |
| 📊 CSV to JSON Convert CSV spreadsheet data to JSON instantly → | https://devdunia.com/csv-json-converter.html |
| ⚖️ YAML ⇄ JSON Bidirectional conversion between YAML and JSON → | https://devdunia.com/yaml-json-converter.html |
| 📄 XML Formatter Format and indent XML documents for readability → | https://devdunia.com/xml-formatter.html |
| 🔄 PHP ⇄ JSON Convert between JSON data and PHP array syntax → | https://devdunia.com/php-to-json.html |
| 💬 String Transformer camelCase, snake_case, UPPER, kebab-case and more → | https://devdunia.com/string-transformer.html |
| 🔒 Clickjacking Checker Test if a site is vulnerable to clickjacking attacks → | https://devdunia.com/clickjacking-checker.html |
| 📋 HTTP Headers Inspect HTTP response headers for security misconfigs → | https://devdunia.com/http-response-header-printer.html |
| 🐛 OWASP Top 10 Interactive reference for OWASP Top 10 web vulnerabilities → | https://devdunia.com/owasp-top10.html |
| 🔐 Hash Generator Generate MD5, SHA-1, SHA-256, SHA-512 hashes instantly → | https://devdunia.com/hash-generator.html |
| 🔑 Caesar Cipher Encrypt and decrypt with the classic Caesar shift cipher → | https://devdunia.com/caesar-cipher.html |
| 📧 Email Header Analyzer Parse email headers for forensics and phishing detection → | https://devdunia.com/email-header-analyzer.html |
| 🔑 Password Generator Generate strong random passwords with custom rules → | https://devdunia.com/password-generator.html |
| 🆔 UUID / GUID Generator Generate RFC 4122 v4 UUIDs and GUIDs in bulk → | https://devdunia.com/guid-generator.html |
| 📱 QR Generator Generate QR codes from any URL, text or WiFi data → | https://devdunia.com/qr-generator.html |
| 📊 Barcode Generator Generate 1D barcodes — Code128, EAN, ISBN and more → | https://devdunia.com/barcode-generator.html |
| 📜 Lorem Ipsum Generate dummy placeholder text for layouts and mockups → | https://devdunia.com/lorem-ipsum-generator.html |
| 😊 Emoji Picker Search and copy any emoji — by name, category or keyword → | https://devdunia.com/emoji-picker.html |
| 👥 GitHub Contributors Visualize contributors for any GitHub repository → | https://devdunia.com/github-contributors.html |
| 🌍 Env Generator Generate .env file templates for various project types → | https://devdunia.com/env-generator.html |
| 🔄 cURL Describer Paste a cURL command and get a plain-English explanation → | https://devdunia.com/curl-describer.html |
| ⏰ Cron Describer Translate cron expressions into human-readable schedules → | https://devdunia.com/cron-describer.html |
| 🔍 Regex Tester Test and debug regular expressions with live highlighting → | https://devdunia.com/regex-tester.html |
| 🗄️ SQL Formatter Format and beautify SQL queries for readability → | https://devdunia.com/sql-formatter.html |
| 📝 Markdown Editor Write Markdown with live preview side by side → | https://devdunia.com/markdown-editor.html |
| 📖 Diff Checker Compare two texts and highlight differences line by line → | https://devdunia.com/diff-checker.html |
| 🌊 Mermaid Renderer Render Mermaid diagrams — flowcharts, sequence, ERD → | https://devdunia.com/mermaid-renderer.html |
| 🐳 Docker Guide Comprehensive Docker commands reference and cheat sheet → | https://devdunia.com/docker-comprehensive.html |
| 👁️ HTML Viewer Paste HTML and preview it rendered live in the browser → | https://devdunia.com/html-viewer.html |
| 🧪 API Response Tester Test and inspect API responses and payment webhooks → | https://devdunia.com/payment-tester.html |
| 📶 NFC Reader Read NFC tags directly in the browser via Web NFC API → | https://devdunia.com/nfc-reader.html |
| 🔗 Text Sharer Share text snippets via a shareable link instantly → | https://devdunia.com/text-sharer.html |
| 🔍 Elasticsearch Tools Build and test Elasticsearch DSL queries → | https://devdunia.com/elasticsearch-tools.html |
| ⏱ Epoch Converter Convert Unix timestamps to human-readable dates and back → | https://devdunia.com/epoch-converter.html |
| 🌏 Timezone Converter Convert times between any world timezones instantly → | https://devdunia.com/timezone-converter.html |
| 💻 Bash Zero to Hero Complete Bash scripting reference from beginner to pro → | https://devdunia.com/bash-zero-to-hero.html |
| 🌐 Network Protocols Overview of common network protocols and use cases → | https://devdunia.com/network-protocols.html |
| 🌍 HTTP Protocol Complete HTTP reference — methods, status codes, headers → | https://devdunia.com/http-protocol.html |
| 🔗 TCP Protocol TCP internals — handshake, flow control, reliability → | https://devdunia.com/tcp-protocol.html |
| ⚡ UDP Protocol UDP — connectionless, fast, datagram-based communication → | https://devdunia.com/udp-protocol.html |
| 🏗️ OSI Model Interactive OSI 7-layer model reference with examples → | https://devdunia.com/osi-model.html |
| 🌐 DNS Resolver Full visual flow: how echobash.com resolves from root → TLD → authoritative NS → IP → | https://devdunia.com/dns-resolver.html |
| 🔍 dig Live DNS lookups — query A, MX, NS, TXT and more via Cloudflare DoH → | https://devdunia.com/dig.html |
| 🔎 nslookup Classic DNS query tool available built-in on Windows, macOS and Linux → | https://devdunia.com/nslookup.html |
| 🗺️ traceroute Map every network hop to a destination — debug routing and latency → | https://devdunia.com/traceroute.html |
| 🏛️ DNS Museum DNS concepts explained in a comic-book interactive format → | https://devdunia.com/dns/index.html |
| 🌐 You Type a URL DNS → TCP → TLS → Load Balancer → App Server → DB → response — every hop visualized → | https://devdunia.com/how-url-works.html |
| 🚦 Rate Limiting Token bucket, leaky bucket, sliding window — all 4 algorithms with live interactive demos → | https://devdunia.com/how-rate-limiting-works.html |
| 🔐 OAuth 2.0 Authorization Code flow, tokens, refresh — who talks to whom and exactly what they say → | https://devdunia.com/how-oauth2-works.html |
| 🗄️ Database Query SQL parser → query planner → optimizer → index scan → buffer pool → disk I/O → | https://devdunia.com/how-db-query-works.html |
| 💻 MacBook Boot Power button → firmware → bootloader → kernel → launchd — every millisecond explained → | https://devdunia.com/how-mac-boots.html |
| 🐳 Docker Images, layers, containers, builds — namespaces and cgroups without the hand-waving → | https://devdunia.com/how-docker-works.html |
| 🚗 Uber Nearby Drivers Geohash, Redis GEORADIUS, H3 hexagonal grid — how Uber finds 8 drivers in 15ms → | https://devdunia.com/how-uber-nearby-drivers.html |
| ⏱ Uber ETA Road graphs, A* pathfinding, Contraction Hierarchies, real-time probe data and ML — the full ETA stack → | https://devdunia.com/how-uber-eta-works.html |
| ⚡ How Nginx Works Event-driven architecture, reverse proxy, load balancing, SSL termination — how Nginx handles millions of requests with 4 worker processes → | https://devdunia.com/how-nginx-works.html |
| 🌐 How CDN Works Edge nodes, PoPs, anycast routing, cache-control headers — how a CDN turns a 150ms request into an 8ms one → | https://devdunia.com/how-cdn-works.html |
| 🌍 google.com — 3D Journey Drag, zoom, and click through a playable 3D map of the internet — DNS, TCP, TLS, and HTTP packets flying in real time → | https://devdunia.com/google_search/basic.html |
| 🔬 google.com — Deep Dive Every hop from DNS root servers to Google's load balancer — packet inspector, resource waterfall, 16-step cheat sheet → | https://devdunia.com/google_search/advance.html |
| 📝 Word Counter Count words, characters, sentences and reading time → | https://devdunia.com/word-counter.html |
| 🖥️ HTML Entities Encode/decode HTML special characters and entities → | https://devdunia.com/html-entities.html |
| 🔢 ASCII Converter Convert between text, ASCII codes, binary and hex → | https://devdunia.com/ascii-converter.html |
| 🔄 ROT13 Encoder Apply ROT13 substitution cipher to any text instantly → | https://devdunia.com/rot13-encoder.html |
| 🐘 PostgreSQL Guide Complete PostgreSQL reference — queries, functions, admin → | https://devdunia.com/postgresql-guide.html |
| 📚 Redis Commands Interactive Redis command reference with syntax and examples → | https://devdunia.com/redis-command-explorer.html |
| 🔍 Elasticsearch Tools Build, test and explore Elasticsearch DSL queries → | https://devdunia.com/elasticsearch-tools.html |
| 🌐 Requests Library Python requests — HTTP GET, POST, headers, authentication → | https://devdunia.com/python-requests.html |
| 🌶️ Flask Guide Flask web framework — routes, templates, API patterns → | https://devdunia.com/python-flask.html |
| 🐼 Pandas Guide Pandas DataFrames — read, filter, group, transform data → | https://devdunia.com/python-pandas.html |
| 🤖 OpenAI Library Python OpenAI SDK — chat completions, prompts, API patterns → | https://devdunia.com/python-openai.html |
| 🔗 urllib Python's built-in urllib for URL handling and HTTP requests → | https://devdunia.com/python-urllib.html |
| Ali Anwar — echobash.com | https://echobash.com |
| github.com/echobash | https://github.com/echobash |
| linkedin.com/in/echobash | https://linkedin.com/in/echobash |
| 01 — Encoders / Decoders | https://devdunia.com#encoders |
| 02 — Security & VAPT | https://devdunia.com#security |
| 03 — Generators | https://devdunia.com#generators |
| 04 — API & Dev Tools | https://devdunia.com#devtools |
| 05 — Network Protocols | https://devdunia.com#network |
| 05b — DNS Tools | https://devdunia.com#dns |
| HOW — How X Works | https://devdunia.com#how |
| 06 — Text Tools | https://devdunia.com#text |
| 07 — Database | https://devdunia.com#database |
| 08 — Python Toolkit | https://devdunia.com#python |
| GitHub Repo | https://github.com/echobash/devdunia |
| Contribute | https://github.com/echobash/devdunia/blob/main/CONTRIBUTING.md |
| Code of Conduct | https://github.com/echobash/devdunia/blob/main/CODE_OF_CONDUCT.md |
| Support DevDunia | https://devdunia.com/support.html |
| Contact | https://devdunia.com/contact.html |
| Privacy Policy | https://devdunia.com/privacy/ |
| Ali Anwar | https://echobash.com |
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