Online Tools
A collection of free online tools for developers and creators.
Popular Tools
Background Remover
Remove backgrounds from images directly in your browser. No server upload, completely private.
Use Tool →Image Resizer / Compressor / Converter
Resize, compress, and convert images online. Pixel, percentage, and fit-within modes. Social media presets, batch processing, and format conversion. 100%% browser-based.
Use Tool →Loan Calculator
Calculate monthly payments, total interest, and view a full amortization schedule for any loan.
Use Tool →Regex Tester / Editor
Test, visualize, replace, and explain regular expressions in your browser. Match highlighting, capture groups, replacement preview, pattern explainer, and cheat sheet. No data sent to server.
Use Tool →Password Generator
Generate secure passwords with custom patterns, character sets, and exclusion rules. All processing happens in your browser.
Use Tool →QR Code Generator
Generate QR codes quickly and easily from any text or URL.
Use Tool →Retirement Calculator
Plan your retirement with confidence. Calculate how much you need to save, see your pension gap, and visualize your path to a secure retirement.
Use Tool →Base64 Encoder / Decoder
Encode, decode, and validate Base64 in your browser. Supports text, files, images, Data URLs, and URL-safe Base64. No data sent to server.
Use Tool →View All Tools
Browse all tools organized by category.
View All →Browse by Category
Recently Added
World Timezone Map
Interactive world map with real-time day/night boundary and local times for major cities. Powered by your browser clock — no server needed.
Use Tool →World Timezone List
Compare time differences between cities worldwide with an interactive timezone list.
Use Tool →BMR / TDEE Calculator
Calculate your Basal Metabolic Rate and Total Daily Energy Expenditure. Three formulas, five activity levels. 100%% browser-based.
Use Tool →Weight Loss Predictor
Predict your weight loss over time based on calorie intake. Adaptive BMR recalculation produces a realistic decay curve. 100%% browser-based.
Use Tool →