Convert Markdown syntax to clean HTML code instantly. Supports headings, bold, italic, links, lists, code blocks, tables, and blockquotes. Free, no signup.
Markdown Table Generator — Create Markdown Tables Visually
Generate markdown tables visually with a spreadsheet-like editor. Add rows and columns, edit cells, and copy the markdown output. Free online table generator.
Lorem Picsum
Free, fast, and secure lorem picsum tool for your everyday needs.
LLM Token Cost Calculator – OpenAI, Anthropic & Gemini API Pricing
Calculate and compare LLM API expenses across GPT-4o, Claude 3.5 Sonnet, Gemini 1.5 Pro, and Llama 3. Model prompt tokens, completion generation, and prompt caching.
Learning Rate Scheduler with Cosine Annealing & Warmup Calculator – Free Tool
Calculate and visualize deep learning optimizer learning rate schedules: Cosine Annealing with Warmup, SGDR warm restarts, OneCycle policy, and export PyTorch code.
Laser Diode Rate Equations & Threshold Current Calculator – Free Optoelectronics Tool
Calculate laser diode threshold current, slope efficiency, optical power output, and relaxation resonance frequency using semiconductor laser rate equations.
Jwt Generator
Free, fast, and secure jwt generator tool for your everyday needs.
JWT Expiration Calculator – Token TTL, Clock Skew & Refresh Sizing
Calculate and design optimal JSON Web Token (JWT) lifetimes. Balance short-lived Access Token TTL, Refresh Token rotation, clock skew leeway, and Redis memory.
JWT Decoder — Decode & Inspect JSON Web Tokens
Decode and inspect JSON Web Tokens (JWT). View header, payload, signature, and expiration status. Free online JWT decoder with no server-side processing.
JSON Validator — Validate JSON Syntax Online Free
Validate JSON data with detailed error reporting. Get line numbers, error descriptions, and auto-formatting for valid JSON. Free online JSON validator.