Free Online File, Text, and JSON Tools

Convert, compare, format, compress, and transform files and text securely in your browser

FreeOnlineSecureNo Install

UtilityHub brings together the file and data tools people reach for every day - image and PDF conversion, compression, JSON and CSV utilities, encoders, hashes, and generators - in one fast workspace. Every tool runs without registration, processes your files over an encrypted connection, and deletes them automatically a short time after your download. There is nothing to install: open a tool, drop in your file, and get the result.

Why people use UtilityHub

Your files stay private

Uploads are processed over HTTPS and deleted automatically soon after you download the result. We never sell or reuse your files.

No account required

Use almost every tool instantly, with no sign-up and no email. An optional account only adds history and higher limits.

Free to use

The core tools are free for everyday use, supported by unobtrusive ads instead of paywalls.

Fast and focused

Each tool does one job with a clean interface, live progress, and an instant download when it's finished.

Image

Resize, compress, convert, watermark, and prepare images for websites, social media, or document workflows.

Add Watermark Border

Add a colored border frame around an image for branding or framing.

Base64 to Image

Turn a Base64 data string back into a viewable, downloadable image file.

Change Image DPI

Set the DPI (print resolution) stored in an image without changing its pixels.

Compress Image

Shrink JPG, PNG, and WebP images to smaller files while keeping them sharp.

Favicon Generator (ICO)

Create a multi-size ICO favicon for your website from a single image.

HEIC to JPG (iPhone Photos)

Convert iPhone HEIC photos to universally supported JPG images.

HEIC to PNG

Convert HEIC and HEIF photos to lossless PNG images.

HEIC to WebP

Convert HEIC photos to compact, web-friendly WebP images.

Image Crop

Crop an image to a precise area or aspect ratio right in your browser.

Image Flip

Flip an image horizontally or vertically in one click.

Image Format Converter

Convert images between JPG, PNG, WebP, and other common formats.

Image Grayscale Converter

Turn a color image into clean black-and-white grayscale.

Image Invert Colors

Invert every color in an image to create a photo-negative effect.

Image Metadata Viewer

Inspect an image's EXIF metadata, including camera, date, and GPS data.

Image Resize

Resize images to exact width and height with an optional aspect-ratio lock.

Image Rotate

Rotate an image by 90, 180, or 270 degrees, or a custom angle.

Image Text Watermark

Add customizable text watermark to images, with single or repeated layout.

Image to Base64

Encode an image into a Base64 string for inline use in HTML or CSS.

PNG Background Remover

Remove the background from a PNG and keep clean transparency.

Thumbnail Generator

Create smaller thumbnail versions of your images at a chosen size.

PDF

Merge, split, compress, convert, and inspect PDF documents without installing a desktop editor.

Compress PDF

Reduce PDF file size so documents are easier to email and upload.

DOCX to PDF

Convert Word DOCX documents to PDF while preserving layout and fonts.

Extract PDF Pages

Pull selected pages or page ranges out of a PDF into a new file.

Image to PDF

Combine one or more images into a single PDF document.

Markdown to PDF

Turn a Markdown document into a formatted, printable PDF.

Merge PDFs

Combine multiple PDFs into one ordered document.

PDF Add Page Numbers

Add page numbers to a PDF with control over position and starting value.

PDF Metadata Editor

Edit a PDF's title, author, subject, and keyword metadata.

PDF Metadata Viewer

View the title, author, dates, and producer stored in a PDF.

PDF Password Protect

Encrypt a PDF with a password so only authorized people can open it.

PDF Reorder Pages

Rearrange the pages of a PDF into any order you want.

PDF to DOC

Convert a PDF into an editable Word DOC file.

PDF to DOCX

Convert a PDF into an editable Word DOCX document.

PDF to Text

Extract selectable text from a PDF for copying, search, or analysis.

PDF Unlock

Remove the open password from a PDF you are authorized to access.

PDF Watermark

Stamp a text or image watermark across the pages of a PDF.

Rotate PDF Pages

Rotate selected or all PDF pages to fix their orientation.

Split PDF into Pages

Split a PDF into individual pages or custom page ranges.

Text to PDF

Convert plain text into a clean, printable PDF.

Encode/Decode

Encode, decode, hash, encrypt, and transform technical data used in APIs and development tasks.

AES Decrypt

Decrypt AES-encrypted text or files back to their original content using your secret key.

AES Encrypt

Encrypt text or files with AES so only someone holding your key can read them.

Base64 Decode

Decode Base64 strings back into readable text, files, or binary data.

Base64 Encode

Encode text or files into Base64 for safe transport in JSON, email, or data URIs.

HTML Decode

Convert HTML entities like & and < back into plain readable characters.

HTML Encode

Escape special characters into HTML entities to display code or untrusted text safely.

JSON to C# Class

Generate C# classes from a JSON sample for strongly typed deserialization.

JWT Decoder

Decode a JSON Web Token to inspect its header, payload, and claims.

MD5 Hash Generator

Generate an MD5 checksum of text or a file to verify integrity.

SHA-1 Hash Generator

Generate a SHA-1 hash of text or a file for checksums and fingerprints.

SHA-256 Hash Generator

Generate a secure SHA-256 hash of text or a file.

SHA-512 Hash Generator

Generate a SHA-512 hash for strong integrity checks and fingerprinting.

URL Decode

Decode percent-encoded URLs back into readable text.

URL Encode

Percent-encode text so it is safe to use in URLs and query strings.

Generators

Create practical outputs such as passwords, UUIDs, QR codes, and other reusable assets.

HMAC Generator

Generate an HMAC signature for a message using your secret key and chosen hash.

JWT Generator

Build and sign a JSON Web Token with custom claims and a secret key.

Password Generator

Create strong, random passwords with custom length and character rules.

QR Code Generator

Create downloadable QR codes from any URL or text, with custom colors and size.

UUID/GUID Generator

Generate random UUIDs (GUIDs) one at a time or in bulk.

Data & Text

Format, compare, convert, and clean structured text, JSON, CSV, XML, YAML, and developer snippets.

Case Converter

Convert text between UPPERCASE, lowercase, Title Case, camelCase, snake_case, and more.

Cron Expression Parser

Decode any cron expression into a plain-English schedule and preview upcoming run times.

CSV Column Extractor

Pull selected columns out of a CSV file and export just the data you need.

CSV Formatter

Clean, sort, re-delimit, and tidy messy CSV data before importing it elsewhere.

CSV Merge

Combine several CSV files into one consistent table, matched by column.

CSV to JSON

Convert CSV rows into structured JSON for APIs, scripts, and data imports.

CSV to XLSX (Excel)

Turn a CSV file into a ready-to-open Excel (XLSX) spreadsheet.

DOCX to Text

Extract plain text from a Word DOCX file for copying, search, or analysis.

JSON Compare

Compare two JSON documents and highlight added, removed, and changed values.

JSON Formatter/Minifier

Format, minify, and re-case JSON so it is easy to read and validate.

JSON to CSV

Flatten a JSON array into a spreadsheet-ready CSV table.

JSON to TypeScript Interface

Generate TypeScript interfaces from JSON for type-safe code.

JSON to XML

Convert JSON data into well-formed XML.

JSON to YAML

Convert JSON into clean, human-readable YAML.

Markdown to HTML

Convert Markdown into clean HTML you can paste anywhere.

Regex Tester

Test regular expressions against sample text and see matches highlighted live.

Remove Duplicate Lines

Remove duplicate lines from a list while keeping the original order.

Reverse Text

Reverse a string character by character, or reverse the order of lines.

Sort Lines

Sort lines of text alphabetically, numerically, or in reverse.

SQL Formatter

Format and indent messy SQL queries to make them readable.

Text Diff / Compare

Compare two blocks of text and highlight every addition, deletion, and change.

Text to DOCX

Turn plain text into a downloadable Word DOCX document.

Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and back, with timezone support.

Unix Timestamp Converter (Legacy)

Convert Unix timestamps to readable dates and back.

Word Counter

Count words, characters, sentences, and paragraphs in your text instantly.

XLSX to CSV (Excel)

Convert an Excel XLSX spreadsheet into a plain CSV file.

XML Formatter

Pretty-print and indent XML so it is easy to read and review.

XML to JSON

Convert XML data into equivalent JSON.

YAML Formatter

Clean up and re-indent YAML for consistent, readable configuration files.

YAML to JSON

Convert YAML configuration into JSON.

Archive & Files

Inspect, package, extract, scan, and understand files before sharing or importing them elsewhere.

File Size Converter

Convert between bytes, KB, MB, GB, and TB with accurate binary and decimal units.

File Type Detector

Identify a file's real type from its signature, regardless of its extension.

Text Encoding Detector

Detect the character encoding of a text file, such as UTF-8, UTF-16, or Windows-1251.

ZIP Creator

Bundle multiple files into a single downloadable ZIP archive.

ZIP Extractor

Extract the contents of a ZIP archive in your browser.

Other

Additional online utilities for everyday file, data, and productivity tasks.

File Virus Scan

Scan uploaded files with ClamAV and return a malware detection report.

UUID Validator

Check whether a string is a valid UUID and detect its version.

Frequently asked questions

Is UtilityHub free to use?

Yes. The core tools are free for everyday use. An optional account adds extras such as processing history and higher usage limits, but you can use most tools without signing up.

Do I need to create an account?

No. Almost every tool works immediately without registration. You only need an account if you want to keep a history of your jobs or raise your usage limits.

What happens to the files I upload?

Files are uploaded over an encrypted HTTPS connection, processed on our servers, and deleted automatically a short time after you download your result. They are never sold or reused.

Do I need to install any software?

No. Every tool runs in your web browser on desktop and mobile. There is nothing to download or install.

What kinds of tools does UtilityHub offer?

UtilityHub covers image editing and conversion, PDF tools, data utilities for JSON, CSV, XML and YAML, encoders and hashes, text tools, and generators such as QR codes and passwords.