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Most popular calculators
Robots.txt Generator
Generate a robots.txt file with allow/disallow rules and sitemap URL. Works for WordPress and any website.
OG Image Generator
Create Open Graph images for social shares. Generate 1200x630 OG images with text, branding, and export options.
Image Compressor
Compress images to reduce file size without visible quality loss. Supports JPG, PNG, WebP with quality control.
WebP Converter
Convert images to WebP or WebP to JPG/PNG. Fast conversion with quality settings and transparency support.
Favicon Generator
Generate favicons from an image. Export ICO and PNG sizes (16x16 to 512x512) plus site icon assets.
Text Tools Pro
All-in-one text tools: case conversion, word/char count, find & replace, remove punctuation, encode/decode.
Document + PDF Converter
Convert documents and PDFs between formats (PDF, DOCX, JPG/PNG). Quick conversions with download-ready outputs.
Image Converter Pro
Convert images between JPG, PNG, WebP, GIF and more. Fast, browser-based conversion with quality control.
AVIF Converter Pro
Convert AVIF images to JPG, PNG, or WebP instantly. Keep quality control and transparent PNG support.
PayPal Fee Calculator
Calculate PayPal fees, net received, or the amount to charge. Supports percent + fixed fee fee models.
Salary calculator
Convert hourly, weekly, or monthly pay to annual salary (and reverse). Includes overtime and hours/week inputs.
Inflation Calculator
Estimate how inflation changes purchasing power. Convert past prices to today’s value and see cumulative inflation.