brevio

Brevio is a collection of over 490 free browser-based utilities across 14 categories, including PDF editing, image conversion, developer tools, and calculators. It solves the problem of needing to upload private files to unknown servers for simple tasks by processing everything locally in the browser. The target audience is developers and general users who need quick, private tools without signup or ads. It is positioned as a privacy-first alternative to online tools, with no server involvement and no data leaving the device.

Key features

• PDF merge, split, rotate, watermark
• Image conversion and resizing
• Developer tools like .gitignore generator
• Finance calculators like VAT and mortgage
• Text tools like case converter and diff
• Crypto tools like Ethereum validator
• Design tools like color converter
• Health tools like BMI and calorie calculator
• Time tools like stopwatch and pomodoro
• Career tools like resume and cover letter