HTML Tools Collection

Convert JSON to YAML and vice versa

Validate and visualize YAML

Compare two JSON objects

Beautify SQL queries

View GitHub issues clearly

Render Markdown to HTML

Preview raw HTML code

Compare two text files

Test Regular Expressions

Estimate LLM tokens

Beautify and minify JSON data

Minify CSS to reduce file size

Count words, characters, and lines

Extract text from images

Estimate reading time

Debug clipboard contents

Extract links from HTML/text

Generate placeholder text

Convert Markdown to HTML code

Crop for social media

Get bounding box coordinates

Convert PNG/WebP to JPEG

Resize images to specific dimensions

Pick and convert color formats

Generate QR Codes from text

Convert SVG to raster images

Get video thumbnail URLs

Convert Unix timestamps

Compare multiple timezones

Calculate date differences

Estimate file transfer time

Monitor AI service uptime. Get backup recommendations when Claude, ChatGPT, or Gemini goes down.

Generate random UUIDs

Calculate MD5, SHA-256 hashes

Encode and Decode Base64

Encode and Decode URLs

Display browser user agent

AES encrypt messages

Generate secure random passwords

Calculate ROI on your AI tool subscriptions

Find the right AI tool for your use case and budget

Build your AI tool stack and compare retail vs shared plan pricing

Compare monthly API costs across GPT-5.4, Claude, Gemini, Muse Spark, and Gemma 4

Calculate your monthly Claude API cost by requests and tokens per call. Compare Haiku, Sonnet, Opus against GPT-4o and Gemini.

Predict 6/12/24-month MRR based on 107 real AI startup teardowns

Generate tasteful flirty openers and replies by relationship stage and tone, each with a why-it-works note

Match your stack to BAS, DAST, or automated pentest tools. Five inputs, instant category recommendation.