Utilumo builds browser tools that run on your device.

The tools cover small everyday jobs like converting an image, formatting JSON or splitting a PDF. Files are processed in your browser and never uploaded, and nothing needs an account.

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 tools13 categories

Images26 toolsCompress, convert, resize, clean, and protect images locally.View category PDF10 toolsMerge, split, rotate, and prepare PDFs with less friction.View category Developer68 toolsFormat, validate, decode, generate, and inspect data.View category Text30 toolsCount, clean, compare, convert, and reshape writing.View category Calculator13 toolsFast everyday calculators for work, money, dates, and ratios.View category Privacy Tools18 toolsHide sensitive details and remove metadata before sharing.View category Browser22 toolsInspect URLs, sessions, viewport details, and browser data safely.View category AI30 toolsClean, count, split, and validate AI workflow data locally.View category Audio18 toolsConvert, edit, and analyze audio locally in the browser.View category Video8 toolsCut, split, loop, mute, transform, compress, and convert videos locally in your browser where supported.View category Creator45 toolsPrepare titles, thumbnails, descriptions, captions, and social image exports.View category Productivity4 toolsTimers, planning helpers, and lightweight work utilities.View category Compliance & Regulation5 toolsPrepare product data, AI disclosures and review evidence locally.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.

The latest additions to your browser toolbox.

New

AI Disclosure Generator

Generate AI notices with live UI and code previews.

Open tool New

AI Transparency Checker

Review AI disclosure and marking tasks locally.

Open tool New

DPP Data Mapper

Map product data and retain its sources locally.

Open tool New

AI System Manifest Generator

Document AI configuration as YAML or JSON.

Open tool

Learn + Reference

Learn and reference.

Short guides and lookup pages connected to Utilumo tools.

Latest LearnView all

GuideHow to add a clear AI disclosure to your interface GuideHow to document AI systems in a YAML or JSON manifest GuideHow to map product data for a digital product passport

Quick ReferenceView all

5 entriesAI Disclosure UI Patterns 7 entriesAI Evidence Record Fields 8 entriesAI System Manifest Fields

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.