Developer Tools
Encoding & Data
8
Base64 Encoder / Decoder
Encode and decode Base64 for text, files, images, audio, and video.
JSON Toolkit
Format, validate, minify, and explore JSON with tree, table, and map views.
Hash Generator
Generate MD5, SHA-1/256/384/512, SHA3, and BLAKE2b hashes and HMACs from text or files.
UUID Generator
Generate UUID v1, v4, v7, NIL in bulk. Validate, parse timestamps, format for any system.
Diff Viewer
Side-by-side and unified text diff with stats and large-file support.
YAML Toolkit
Validate, auto-fix, merge, and convert YAML to JSON, TOML, and env vars.
XML Toolkit
Format, validate, minify, and inspect XML with XSD/DTD and XPath.
Epoch & Timestamp
Convert between Unix epoch timestamps and human-readable dates.
Security & Auth
7
JWT Debugger
Decode, verify (HMAC/RSA/ECDSA), encode, and compare JWTs side-by-side.
Certificate Decoder
Decode SSL/TLS certificates, chains, SANs, and fingerprints.
Password Generator
Generate strong passwords with cryptographically secure randomness.
Package Audit
Scan package.json for npm vulnerabilities via the OSV database.
SBOM Toolkit
View and analyze CycloneDX and SPDX software bills of materials.
Security Headers Analyzer
Grade HTTP headers and CSP with an A–F security report.
Key Toolkit
Generate, inspect, and convert RSA, EC, and Ed25519 crypto keys.
Web & Network
4
OG Image Preview
Preview and debug Open Graph and Twitter Card social share metadata.
Domain WHOIS
Inspect WHOIS, DNS, SSL, IP geolocation, and certificate transparency.
My IP
Find your public IP with geolocation, ISP, fingerprint, and WebRTC leak checks.
Speed Test
Test your internet speed: download, upload, latency, jitter, and packet loss against Cloudflare edge servers.
Scheduling
1
AI & LLM
3
MCP Playground
Test MCP servers and run 27 automated security checks across 7 categories.
Prompt Diff
Semantic, role-aware diff for OpenAI, Anthropic, Gemini, and LangChain prompts.
Token Counter
Count LLM tokens and estimate API costs across 100+ models from 9 providers.
