Utilumo

Fast browser utilities.

Everything runs locally in your browser. No login. No uploads. Privacy-first.

Runs locally

Privacy-first

No login

Instant access

Popular

Popular tools.

Frequent utilities for quick browser-only work.

JSON FormatterFormat, validate, and sort JSON locally.Open tool Image CompressorCompress JPG, PNG, and WebP locally.Open tool Pixel FacePixelate faces and license plates locally.Open tool Merge PDFCombine PDF files and page ranges.Open tool Word CounterCount words and reading time locally.Open tool UUID GeneratorGenerate UUIDs locally.Open tool

Privacy spotlight

Image privacy tools that stay local.

Redact faces, license plates, screenshots, and image metadata directly in your browser before sharing.

Pixel FacePixelate faces and license plates locally.Open tool Blur FacesBlur faces and license plates locally.Open tool Remove EXIFRemove image metadata locally.Open tool

Choose a category.

Browse by the kind of problem you are trying to solve.

Available

View all tools12 categories

Images23 toolsCompress, convert, resize, clean, and protect images locally.View category PDF10 toolsMerge, split, rotate, and prepare PDFs with less friction.View category Developer51 toolsFormat, validate, decode, generate, and inspect data.View category Text23 toolsCount, clean, compare, convert, and reshape writing.View category Calculator12 toolsFast everyday calculators for work, money, dates, and ratios.View category Privacy Tools15 toolsHide sensitive details and remove metadata before sharing.View category Browser19 toolsInspect URLs, sessions, viewport details, and browser data safely.View category AI14 toolsClean, count, split, and validate AI workflow data locally.View category Audio15 toolsConvert audio into MP3, WAV, and FLAC files locally in the browser.View category Video8 toolsCut, split, loop, mute, transform, compress, and convert videos locally in your browser where supported.View category Creator33 toolsPrepare titles, descriptions, captions, and social image exports.View category Productivity3 toolsTimers, planning helpers, and lightweight work utilities.View category

Trending

Trending now.

Useful tools for common privacy, image, and developer tasks.

Blur FacesBlur faces and license plates locally.Remove EXIFRemove image metadata locally.JSON FormatterFormat, validate, and sort JSON locally.Image CompressorCompress JPG, PNG, and WebP locally.

Recently added

Recently added.

New utility pages being prepared for full browser-side workflows.

New

Chat Export Cleaner

Clean AI chat exports locally.

Open tool New

Transcript Cleaner for Prompts

Clean transcript text for AI prompts.

Open tool New

Markdown Cleaner for AI

Clean Markdown before AI prompts.

Open tool New

AI Text Chunker

Split long text into AI prompt chunks locally.

Open tool New

Prompt Template Builder

Build reusable prompt templates locally.

Open tool New

Hashtag Cleaner

Clean social hashtags locally.

Open tool New

OpenAPI Viewer

Inspect OpenAPI and Swagger specs locally.

Open tool New

YouTube Chapters Generator

Generate YouTube chapters locally.

Open tool New

Thumbnail Size Checker

Check thumbnail size locally.

Open tool

Learn + Reference

Learn and reference.

Short guides and lookup pages connected to Utilumo tools.

Latest LearnView all

GuideHow to calculate a discount GuideHow to add or remove VAT GuideHow to remove sensitive info from screenshots

Quick ReferenceView all

14 entriesJWT claims reference 7 entriesllms.txt structure reference 8 entriesVideo formats & codecs reference

Why Utilumo

Serious defaults.

Local-first tools with no account wall and no unnecessary uploads.

Fast

Open a tool, solve the small problem, move on.

Private

Local-first workflows reduce unnecessary exposure.

No login

No account wall between you and a quick utility.

Browser only

Interactive tools keep work in the tab whenever possible.