Paste your LLM prompt and instantly see how many tokens (and dollars) you can save. Detects whitespace waste, repeated instructions, verbose phrasing, and filler words — then generates an optimized version you can copy.
Monthly savings at 1,000 calls/day with the optimized prompt.
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Optimize your prompt here, then count the tokens or estimate your monthly costs.
Removing whitespace, filler words, and duplicate instructions has minimal impact on output quality. Studies show that concise prompts often produce better results because the model focuses on the actual instruction rather than parsing noise. Always test optimized prompts on your specific use case before deploying.
Typical savings range from 10% to 40% of input tokens depending on the prompt style. System prompts with repeated instructions and verbose phrasing see the highest reductions. At 10,000 calls/day on GPT-4o, a 25% token reduction saves roughly $375/month. Use our cost calculator to model your specific scenario.
No. All analysis runs entirely in your browser using JavaScript. Your prompt never leaves your machine. No data is stored, logged, or transmitted. You can verify this by checking your browser's network tab — there are zero outgoing requests during optimization.
Beyond prompt compression, the biggest cost levers are: prompt caching (up to 90% discount on repeated instructions), model selection (GPT-4o-mini is 17x cheaper than GPT-4o for most text tasks), and hard budget caps that prevent runaway spending. See our complete optimization guide.