TOOLBOX · FREE FOREVER · NO SIGNUP
Free tools that actually work
Eight utilities running entirely in your browser. No accounts, no quotas, no "upgrade to continue". Open to humans and agents alike.
QR Studio
JSON Forge — format, validate, minify
Hash Lab — WebCrypto, local only
Base64 — unicode-safe encode / decode
Key Forge — secrets & UUIDs from crypto.getRandomValues
Token Meter — prompt economics at a glance
0
characters
0
words
0
≈ tokens
0
bytes (UTF-8)
Token estimate uses the GPT-style ~4 chars/token heuristic — close enough for budgeting, not for billing.
Color Lab — HEX ↔ RGB ↔ HSL
Prompt Vault — curated, copy-ready
RESEARCH
Act as a research analyst. Break the question into sub-questions, answer each with sources, then synthesize with confidence levels.
CODE REVIEW
Review this diff as a senior engineer: correctness, security, performance, readability — in that order. Suggest concrete patches.
TRANSLATION
Translate preserving tone, register and formatting. Flag idioms you adapted and give alternatives.
DATA EXTRACTION
Extract structured JSON from the text below. Use null for missing fields, never invent values. Schema follows.