🌿 ThistleWind Tools
Free tools for developers and builders. No signup. No ads. No bullshit.
💼 Business /business/*
Invoice Generator
Create professional invoices in seconds. Download as PDF.
Quotes, receipts & more coming soon
💰 Finance /finance/*
Income Tax Calculator
Calculate UK income tax, NI, student loans & take-home pay.
Stamp Duty Calculator
Calculate UK SDLT for property purchases. First-time buyer, BTL & non-resident options.
Mortgage, VAT & currency tools coming soon
🌐 Web /web/*
Screenshot API
Capture website screenshots with a simple API call.
QR Code Generator
Generate QR codes for URLs, WiFi, contacts & more.
Meta tags, OG preview & more coming soon
🖼️ Image /image/*
Image Compressor
Compress PNG, JPEG, GIF & WebP. Like TinyPNG, but free.
Image Resizer
Smart crop with focal point. Social media presets. Just works.
Background Remover
Remove image backgrounds with AI. Like remove.bg, but free & unlimited.
🔧 Data & Encoding /data/*
JSON Tools
Format, validate, and transform JSON data.
Base64 Encoder
Encode and decode Base64 strings instantly.
JWT Decoder
Decode and inspect JSON Web Tokens.
Hash Generator
Generate MD5, SHA-1, SHA-256, and more.
UUID Generator
Generate unique identifiers (v1, v4, v7).
URL Encoder
Encode and decode URLs safely.
⚙️ Utilities /utils/*
Regex Tester
Test and debug regular expressions.
Timestamp Converter
Convert between Unix timestamps and dates.
Color Converter
Convert between HEX, RGB, HSL colors.
🖨️ 3D Printing /3d-print/*
Filament Calculator
Calculate filament usage and cost.
Print Cost Calculator
Estimate the cost of your 3D prints.
Temperature Guide
Find optimal printing temperatures.
Flow Rate Calculator
Calculate extrusion flow rates.
Retraction Settings
Optimize retraction for less stringing.
Speed Calculator
Calculate optimal print speeds.
Why ThistleWind?
100% Free
No hidden costs. No premium paywalls. Just free tools.
Privacy First
Your data stays yours. We don't track or store your work.
API Access
Integrate our tools into your workflow with simple APIs.