Tools — ToolBrain — AI Tool Reviews & News

8 tools · 7 utility · 1 calculator

8 tools

Token Counter screenshot

Token Counter

Count tokens across every major LLM model. Arena winner with a 9.2/10 rating — supports GPT, Claude, Llama, Gemini, Mistral, and more.

Utility 🏆 Arena Winner 9.2

Prompt Optimizer screenshot

Prompt Optimizer

Paste any prompt, get a 6-dimension quality breakdown, and let the heuristic rewrite engine restructure it — 100% client-side.

Utility 2 steps

Variable Extractor screenshot

Variable Extractor

Extract {{variables}} from your prompt templates automatically. Arena winner with an 8.5/10 rating.

Utility 🏆 Arena Winner 8.5

Context Calculator screenshot

Context Calculator

Calculate token costs, context windows, and pricing across every major LLM provider in 4 quick steps.

Calculator 4 steps

Prompt Version Diff screenshot

Prompt Version Diff

Compare two prompt versions side by side with clear diffs. Track changes in 2 quick steps.

Utility 2 steps

Repo Prompt Generator screenshot

Repo Prompt Generator

Generate structured prompts from your code repository. Paste a repo URL and get an LLM-ready context in 2 steps.

Utility 2 steps

Prompt Eval Arena screenshot

Prompt Eval Arena

Head-to-head prompt evaluation arena. 100% client-side — no data ever leaves your browser.

Utility 100% client-side

JSON Formatter screenshot

JSON Formatter

Format, minify, validate, and explore JSON with a collapsible tree view. 100% client-side.

Utility 100% client-side

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