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Free voice calculator you speak to, in the browser or on iPhone.

Arithmetic, finance and practical calculation worksheets

Formula calculators with selectable input units

Calculators with contextual input help

A focused math solver with examples and reference links

Preview a 3D model before exporting another format

Query and convert structured files with one CLI syntax

Scan documents into searchable, organized PDFs

Reach extra characters by swiping key corners

A pay-as-you-go API gateway for Claude Code, Codex CLI, Gemini CLI and Cursor.

Real-time voice translation for video calls

Wii U emulation with controller and graphics configuration

NES emulation with debugging and tool-assisted movie tools

Open-source gamepad-to-keyboard and mouse mapping

Progressive note-reading drills across seven clefs

Copy symbols and assemble them on a board

Windows live switching with cameras, remote calls and replay

Visualize traffic as hosts and links that change with activity

Map Windows Wi-Fi observations with GPS information

AI tool that turns screenshots and videos into front-end code.

An open emoji library with color fonts, image assets and metadata.

Scientific calculation with expression history

Codec-level VP8 and VP9 encoding through standalone tools

AI presentation maker that turns prompts or files into editable slides