26 tools

AI tools

Free AI workflow utilities for counting tokens, extracting JSON, cleaning AI output, and preparing structured data. Utilumo tools run locally in your browser with no account.

26 ready tools

Runs locally

No signup

Searchable

26 AI tools

JSON to Zod SchemaGenerate Zod schemas from JSON locally.Open tool

JSONL ValidatorValidate JSONL rows locally.Open tool

JSON DiffCompare two JSON values locally.Open tool

llms.txt GeneratorGenerate llms.txt discovery files locally.Open tool

Token CounterEstimate AI prompt size and cost locally.Open tool

Prompt OptimizerStructure rough AI prompts locally.Open tool

Prompt CleanerClean AI prompts and chat text locally.Open tool

AI Cost CalculatorCalculate custom AI token costs locally.Open tool

Prompt DiffCompare prompt versions locally.Open tool

JSON ExtractorExtract JSON snippets from AI output locally.Open tool

JSON Schema GeneratorGenerate JSON Schema from JSON locally.Open tool

AI JSON Output ValidatorValidate JSON from AI responses locally.Open tool

Prompt Batch GeneratorGenerate prompt batches from variables locally.Open tool

AI Table CleanerClean AI tables into Markdown, CSV, TSV, or JSON.Open tool

AI Context Window PlannerPlan AI context-window budgets locally.Open tool

AI Source & Citation CheckerAudit AI sources, citations, and claims locally.Open tool

AI Claim ChecklistExtract AI draft claims into a review checklist.Open tool

AI Content ReviewReview AI-assisted content before publishing.Open tool

Prompt Injection ScannerScan prompt-injection signals locally.Open tool

AI Text ChunkerSplit long text into AI prompt chunks locally.Open tool

Prompt Template BuilderBuild reusable prompt templates locally.Open tool

Chat Export CleanerClean AI chat exports locally.Open tool

Transcript Cleaner for PromptsClean transcript text for AI prompts.Open tool

Markdown Cleaner for AIClean Markdown before AI prompts.Open tool

Transcript to YouTube ChaptersCreate YouTube chapters from transcripts locally.Open tool

Hashtag CleanerClean social hashtags locally.Open tool

Guide

About AI utilities

AI utilities help you clean model output, count tokens, extract structured JSON, and prepare text before pasting it into another workflow.

Utilumo keeps these workflows local where possible, so prompts, drafts, and extracted data are not uploaded to a Utilumo server.

FAQ

AI tools FAQ

Do AI utilities send my text to an AI model?

No. These tools are for local preparation and cleanup. Utilumo does not send your input to an AI provider unless a tool page explicitly says so.

Can I use these tools with ChatGPT or Claude output?

Yes. They are designed for cleaning, counting, validating, and extracting data from AI-generated text.

Learn

Learn about AI

Short explanations and guides behind these tools.

What is JSON?Explainer What is JSON Schema?Explainer How to generate TypeScript types from JSONGuide What is an llms.txt file?Explainer How to generate a Zod schema from JSONGuide How to validate JSONL filesGuide

Explore more

Related categories

Category pages help you move sideways when the next task is close to the one you came for.

DeveloperFormat, validate, decode, generate, and inspect data.TextCount, clean, compare, convert, and reshape writing.ProductivityTimers, planning helpers, and lightweight work utilities.