Utilshub

Private tools / zero uploads

Useful work,
kept on your device.

Fast tools for data, development, and images that run entirely in your browser. No accounts. No waiting for uploads. No file contents leave your device.

Explore all toolsHow privacy works
Local status Ready
Uploads
None
Account
Not required
Processing
Your browser
Ready

CSV to JSON

Convert CSV rows into formatted JSON without uploading data.

Runs locally
Ready

JSON Formatter

Format, validate, minify, and sort JSON without sending it anywhere.

Runs locally
Ready

Image Metadata Viewer

Inspect EXIF, camera details, timestamps, and GPS data locally.

Runs locally
Ready

JSON Diff

Compare two JSON documents and understand what changed.

Runs locally
Ready

JSON to CSV

Convert arrays of JSON objects into portable CSV files.

Runs locally
Ready

UUID Generator

Generate one or many standards-compliant UUID v4 identifiers.

Runs locally
Ready

Random String & Password Generator

Generate secure random strings, passwords, tokens, and test values.

Runs locally
Ready

QR Code Generator

Create QR codes for URLs and text without uploading data.

Runs locally
Ready

QR Code Reader

Decode QR codes from uploaded images locally in your browser.

Runs locally
Ready

Base64 Encoder Decoder

Encode text to Base64 and decode Base64 to UTF-8 text.

Runs locally
Ready

JWT Decoder

Decode JWT headers and payloads locally without uploading tokens.

Runs locally
Ready

Timestamp Converter

Convert Unix timestamps and ISO dates locally in your browser.

Runs locally
Ready

URL Encoder Decoder

Encode, decode, and parse URL components and query strings locally.

Runs locally
Ready

Hash Generator

Generate SHA hashes for text locally with browser Web Crypto.

Runs locally
Ready

Text Diff Checker

Compare two text snippets and review changes locally in your browser.

Runs locally
Ready

Favicon Generator

Generate website and app icon PNG sizes locally from one image.

Runs locally
Ready

Remove Image Metadata

Create a clean copy of an image without hidden metadata.

Runs locally
Ready

Image Compressor

Compress JPG, PNG, and WebP images directly on your device.

Runs locally
Ready

Image Resizer

Resize JPG, PNG, and WebP images locally in your browser.

Runs locally
Ready

Social Image Resizer

Resize one image for common post, story, portrait, and banner sizes.

Runs locally
Ready

Image Cropper

Crop JPG, PNG, and WebP images locally with drag and exact controls.

Runs locally
Ready

PDF to Image

Convert selected PDF pages into PNG images locally in your browser.

Runs locally
Ready

Image Converter

Convert JPG, PNG, and WebP images locally in your browser.

Runs locally

Work by category

A focused toolkit, growing carefully.

Data tools

Shape, inspect, and convert structured data.

Browse category

Developer tools

Generate identifiers, inspect QR and token data, and work with practical developer values.

Browse category

Image tools

Understand and optimize image files privately.

Browse category

How it works

A shorter path from file to finished.

01

Choose a tool

Open the focused workspace for your task.

02

Work locally

Your browser processes the input on your device.

03

Take the result

Copy or download it without creating an account.