Developer Tools Startups & Tools

Clear, privacy-first online calculators and utilities.

Copy dot symbols and check their Unicode, HTML, CSS, JavaScript, and keyboard references.

A shared project workspace for builders, teammates, and AI agents

Check NAT type and public IP details online

Private browser tests for microphones, cameras, screens, and more.

Compare current AI API prices and calculate token costs in one place.

Create Mermaid diagrams online with live preview, templates, sharing, and export.

Online Bengali Unicode and Bijoy text conversion tools for writers and publishers.

Convert any public website page into clean, readable plain text.

Free browser-based tools for text processing, writing, and developer workflows—no signup or installation required.

Compare text, code, JSON, and documents privately in your browser.

Free browser-based API Studio, PDF optimizer, JSON code generator, and developer toolkit.