Runs entirely in your browser

Online Utility Tools Website — 200+ Free Online Tools & Browser Utilities

Fast, private online utility tools for developers, creators, and students. PDFs, images, text, and calculators that process 100% locally in your browser.

Browse all 204 tools Pricing

204tools

5categories

100%client-side

What’s inside

83 Developer & data tools
40 Text utilities
35 Calculators
26 Image tools
20 PDF & document tools

Every one runs client-side — there is no upload step and no server to wait on.

ToolMint Pro — $1 USD / ₹89 INR, once

Every tool includes 10 free daily actions that reset at midnight. Pro removes the daily allowance across all 200+ tools and funds future development. One payment, no subscription, no account.

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Explore Utility Tools

Filter tools by category or search by name & keywords

🔍

Showing 204 tools Press / or Ctrl+K to search

⭐ My Favorite Tools

🕒 Recently Used Tools

🎯

Exact KB Image Maker

Compress and resize images to match an exact target KB file size (e.g. 20 KB, 50 KB, 100 KB).

📱

Social Media Image Resizer

One-click resize for Instagram, Twitter/X, YouTube, Facebook, and LinkedIn.

🛡️

Image Metadata & EXIF Cleaner

Remove GPS coordinates, camera models, and private EXIF metadata from photos.

🛂

Passport Photo Maker

Create official passport and visa size photos with standard dimensions and printable grid sheets.

✍️ Image

Signature Background Remover

Extract handwritten signatures from photos, remove paper background, and make transparent PNGs.

🖼️ Image

Image Border & Padding Tool

Add borders, custom padding, and aspect ratio frames (1:1, 4:5, 16:9) to images.

🧩 Image

Instagram Grid Splitter

Split one photo into 3x1, 3x2, or 3x3 square tiles for Instagram profile feed banners.

⚡ Image

Website Asset & srcset Generator

Generate responsive image sizes (320px to 1920px) with ready-to-use HTML srcset snippets.

🏷️ Developer

Open Graph Social Card Generator

Generate beautiful 1200x630 social share cards and Open Graph preview images.

🔷

JSON to TypeScript Generator

Convert JSON payloads into clean, strongly-typed TypeScript interfaces and type definitions.

🤖 Developer

Robots.txt Generator

Create customized, valid robots.txt files for search engine crawlers with sitemap directives.

🗺️ Developer

XML Sitemap Generator

Generate valid XML sitemaps from URL lists with changefreq, priority, and lastmod tags.

📐 Developer

Schema Markup Generator

Build JSON-LD structured data for Articles, FAQs, Products, Organizations, and Local Businesses.

🔗 Developer

UTM Campaign Link Builder

Generate Google Analytics tracking URLs with source, medium, campaign, and content parameters.

🧹 Developer

URL Parameter Remover & Cleaner

Strip tracking parameters (utm, fbclid, gclid) and clean single or bulk URLs.

🔍 Developer

Secret & API Key Leak Scanner

Scan code and configs locally for exposed AWS keys, GitHub tokens, OpenAI keys, and secrets.

📊 Developer

CSV Cleaner & Deduplicator

Trim cell whitespace, drop blank rows, remove duplicate lines, and normalize CSV data.

✂️ Developer

CSV Splitter by Row Count

Split large CSV files into smaller chunks with custom row counts while preserving headers.

📋 Text

Bulk File Renamer & Pattern Generator

Batch rename filenames with prefixes, suffixes, numbering, find-replace, and slugification.

🔑 Developer

Memorable Passphrase Generator

Generate strong, cryptographically secure Diceware-style memorable passphrases.

🧾

Invoice Generator

Create clean, professional printable invoices with auto-tax, discounts, and PDF printing.

📈 Calculators

Profit Margin & Markup Calculator

Calculate net profit, profit margin percentage, markup, fees, and ROI with visual breakdowns.

📑 Pdf

PDF Page Extractor

Extract specific pages or page ranges from a PDF document into a new standalone PDF.

📑

PDF Merger

Merge multiple PDF files into one combined PDF document.

🖼️

PDF to Image Converter

Convert PDF pages into high-resolution PNG or JPG images.

🖼️

Image to PDF Converter

Convert JPG, PNG, and WebP images into a clean single PDF document.

🔄 Pdf

PDF Page Rotator

Rotate PDF pages by 90, 180, or 270 degrees and download the updated PDF file.

🔄

Image Format Converter

Convert PNG, JPG, WebP, and GIF images between formats with quality control.

📐

Image Resizer

Resize images to custom width and height dimensions.

🌈

Color Palette Generator

Generate harmonized 5-color palettes with hex codes, RGB values, and copy buttons.

🖼️ Image

Image to Base64 Converter

Convert images to Base64 data URIs for inline HTML/CSS.

🎨

CSS Gradient Generator

Create beautiful linear and radial CSS gradients with live preview and instant CSS code copy.

✨

Glassmorphism Generator

Customize backdrop blur, opacity, borders, and shadows to generate modern glass UI CSS code.

⏰

Cron Expression Parser

Parse cron schedule syntax into plain English explanations and next run schedules.

🏷️

Meta Tag & Social Card Generator

Generate SEO, OpenGraph, and Twitter Card meta tags with real-time social card previews.

⚡ Developer

SVG Optimizer & Viewer

Minify SVG code, strip unused XML metadata, and preview vector graphics live.

{}

JSON Formatter

Beautify and validate JSON data structures.

⇄

JSON to CSV Converter

Convert arrays of JSON objects into CSV for spreadsheets.

⎘

CSV to JSON Converter

Turn CSV rows into JSON objects quickly with header support.

B64

Base64 Encoder

Convert plain text into Base64 encoded format.

64B

Base64 Decoder

Decode Base64 strings back into readable plain text.

%20 Developer

URL Encoder

Encode special characters into URL-safe percent strings.

% Developer

URL Decoder

Decode percent-encoded strings into standard URLs.

Case Converter

Convert text to UPPERCASE, lowercase, Title Case, or slug-case.

slug Text

Slug Generator

Turn titles and sentences into SEO-friendly URL slugs.

# Developer

SHA-256 Hash Generator

Generate cryptographic SHA-256 hashes for strings.

🔑

JWT Decoder

Inspect JWT header and payload without sending tokens anywhere.

⏱️

Timestamp Converter

Convert Unix epoch timestamps to human readable dates.

📝

Word Counter

Count words, characters, sentences, and estimated reading time.

🎨 Developer

Color Code Converter

Convert HEX color codes to RGB and HSL formats.

<> Developer

HTML Encoder

Escape special HTML characters into safe entities.

</> Developer

HTML Decoder

Decode HTML entities back to raw HTML markup.

MD Text

Markdown to HTML Converter

Convert Markdown text into formatted HTML markup.

⇄ Text

Text Reverser

Reverse words, letters, or lines of text instantly.

🔍

Find and Replace Text

Search and replace text strings with regex support.

¶ Text

Placeholder Text & Dummy Generator

Generate customizable dummy paragraphs and sample text for mockups.

Y→J Developer

YAML to JSON Converter

Convert YAML configurations into formatted JSON objects.

J→Y Developer

JSON to YAML Converter

Transform JSON objects into clean structured YAML.

MD5 Developer

MD5 Hash Generator

Generate 32-character MD5 checksums for plain text.

🧹 Text

Text Cleaner & Stripper

Strip HTML tags, extra line breaks, and whitespace.

≠

Diff Checker

Compare two text snippets side-by-side to highlight differences.

010 Developer

Binary to Text Converter

Convert binary bits to ASCII text and vice versa.

{} Developer

JSON Minifier

Minify JSON data by removing unnecessary whitespace.

🎲 Calculators

Random Number Generator

Generate a list of random numbers within a specified range.

💻 Developer

MAC Address Generator

Generate random MAC addresses for testing.

📡 Text

Morse Code Converter

Convert text to Morse code and vice versa.

0x Developer

Hex to Text Converter

Convert hexadecimal values to readable text.

T0x Developer

Text to Hex Converter

Convert readable text to hexadecimal values.

A Text

Vowel Counter

Count the number of vowels and consonants in a text.

🔄 Text

Palindrome Checker

Check if a given text is a palindrome.

123 Text

Number to Words Converter

Convert numeric values into English words.

</> Developer

HTML Minifier

Minify HTML code by removing spaces and comments.

SQL Developer

SQL Formatter

Format, beautify, and clean SQL queries online instantly.

<> Developer

XML to JSON Converter

Convert XML documents into formatted JSON objects seamlessly.

🔗 Developer

URL Parser

Break down URLs into protocol, hostname, path, and query parameters.

📄 Text

Duplicate Line Remover

Deduplicate list entries and remove duplicate lines of text.

🔤 Text

Line Sorter

Sort lines alphabetically, by length, or in reverse order.

512 Developer

SHA-512 Hash Generator

Generate 128-character SHA-512 cryptographic hashes.

E Developer

JSON Escape / Unescape

Escape quotes and special characters for JSON strings.

🆔

UUID Generator

Generate random UUID v4 strings for database keys and unique identifiers.

💵 Calculators

Simple Interest Calculator

Calculate interest earned over time with simple interest.

📈 Calculators

Compound Interest Calculator

Calculate investment growth over time with compound interest.

🌐 Developer

IP Subnet Calculator

Calculate subnet ranges, broadcast addresses, and netmasks.

🧾 Calculators

GST Calculator

Calculate Goods and Services Tax (GST) inclusive or exclusive.

🏦

EMI Calculator

Calculate monthly loan EMI and total interest payable.

% Calculators

Percentage Calculator

Calculate percentages, percentage change, and ratio values.

RE Developer

Regex Tester

Test regular expressions against target text in real-time.

📱

QR Code Generator

Generate QR codes for text, URLs, and Wi-Fi credentials.

🪙 Calculators

Tip Calculator

Calculate bill split and tip amount per person easily.

📅 Calculators

Age Calculator

Calculate exact age in years, months, days, and total hours.

📏

Unit Converter

Convert length, mass, temperature, area, and speed units.

⚖️ Calculators

BMI Calculator

Calculate Body Mass Index (BMI) and health category.

🏷️ Calculators

Discount Calculator

Calculate final price after discount percentage or fixed amount.

🖥️ Calculators

Aspect Ratio Calculator

Calculate missing dimensions for 16:9, 4:3, and custom ratios.

🔐

Password Generator

Generate secure, random passwords with custom rules.

✓

JSON Validator

Validate JSON syntax and highlight errors with line numbers privately.

</> Developer

HTML Formatter

Beautify and format messy HTML code with proper indentation instantly.

{ } Developer

CSS Formatter

Beautify and format CSS code with consistent indentation and spacing.

CSS Developer

CSS Minifier

Minify CSS code by removing whitespace and comments for production.

JavaScript Minifier

Minify JavaScript code by removing spaces, comments, and line breaks.

<xml> Developer

XML Formatter

Beautify, format, and validate XML documents with proper indentation.

JSX

HTML to JSX Converter

Convert HTML code to JSX for React components with correct attribute mapping.

🔐 Developer

JWT Encoder

Create and sign JSON Web Tokens (JWT) with custom header and payload.

# Developer

HMAC Generator

Generate HMAC hashes (SHA256/SHA512) with secret key for API signing.

#️⃣

All-in-One Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text in one go.

🖼️ Developer

Base64 to Image Converter

Decode Base64 strings back into viewable and downloadable images.

⇄ Developer

cURL to Fetch Converter

Convert cURL commands to JavaScript fetch code instantly.

📡 Developer

HTTP Header Parser

Parse raw HTTP headers into structured JSON for debugging.

≠

JSON Diff Checker

Compare two JSON objects and highlight added, removed, and changed keys.

⏰

Cron Job Generator

Generate cron expressions visually with plain-English preview and presets.

Aa Text

Character Counter

Count characters with and without spaces, lines, and byte size instantly.

📖 Text

Reading Time Calculator

Estimate reading and speaking time for articles based on word count and WPM.

🔒 Text

Caesar Cipher Encryptor

Encrypt and decrypt text with Caesar cipher shift and brute-force decode.

✨

Fancy Text Generator

Generate Unicode fancy fonts, bold, italic, and stylish text for socials.

✉️

Email Extractor

Extract all email addresses from any text or webpage source code.

🔗 Text

URL Extractor

Extract all URLs and links from text, HTML, or markdown sources.

🔁 Text

Text Repeater

Repeat text, words, or lines multiple times with custom separator.

🧹 Text

Whitespace Remover

Remove extra spaces, tabs, line breaks, and trim whitespace thoroughly.

✂️ Text

Text Truncator

Truncate text by characters, words, or lines with ellipsis and word-safe option.

📊

Word Frequency Counter

Analyze word frequency, density, top keywords, and unique words count.

🏠

Mortgage Calculator

Calculate monthly mortgage payments with down payment and amortization.

🎯 Calculators

Savings Goal Calculator

Plan savings to reach a financial goal with monthly contribution and interest.

📈 Calculators

Inflation Calculator

Adjust money for inflation and see future purchasing power vs today.

💱

Currency Converter

Convert between world currencies with live-style editable exchange rates.

📅

Date Difference Calculator

Calculate days, months, and years between two dates with total days count.

💼 Calculators

Workdays Calculator

Count business days excluding weekends and optional holidays between dates.

⛽ Calculators

Fuel Cost Calculator

Estimate fuel cost, mileage, and litres needed for trips based on efficiency.

💵

Hourly to Salary Calculator

Convert hourly wage to annual, monthly, and weekly salary with hours/week.

💧 Calculators

Water Intake Calculator

Calculate daily water intake based on weight, activity, and climate.

🔥

Calorie Calculator

Estimate daily calories (BMR + TDEE) with Mifflin-St Jeor and activity level.

🗜️

Image Compressor

Compress images to reduce file size with adjustable quality and format.

✂️ Image

Image Cropper

Crop images to custom dimensions, square, 16:9, 4:3, and circle presets.

⭐

Favicon Generator

Generate favicons in multiple sizes (16, 32, 180, 192, 512) from image.

😂

Meme Generator

Create memes by adding top and bottom bold text to images with outline.

⚫ Image

Image Grayscale Converter

Convert color images to black-and-white grayscale instantly.

🌫️ Image

Image Blur Tool

Blur images with adjustable intensity and download the blurred result.

🎨

Color Picker & Eyedropper

Pick colors from color input, image eyedropper, and copy HEX/RGB/HSL.

🗜️

PDF Compressor

Reduce PDF file size by optimizing images and embedded content.

✂️ Pdf

PDF Splitter

Split PDF into single pages or custom page ranges and download ZIP of pages.

📄 Pdf

PDF Text Extractor

Extract all text content from PDF documents page-by-page instantly.

📝

Text to PDF Converter

Convert plain text into a downloadable PDF document with styling.

📑 Pdf

Markdown to PDF Converter

Convert Markdown to styled PDF with headings, lists, and code blocks.

🌐 Pdf

HTML to PDF Converter

Convert HTML code to PDF document with live preview.

📊 Pdf

CSV to PDF Converter

Convert CSV spreadsheets to formatted PDF tables for printing and sharing.

💧

PDF Watermark Tool

Add custom diagonal text watermarks to PDF pages.

🐳

Dockerfile Generator

Generate optimized, production-ready multi-stage Dockerfiles and .dockerignore files.

📁 Developer

.gitignore Generator

Create clean, complete .gitignore templates for languages, frameworks, and operating systems.

⚡ Developer

cURL Command Builder

Visual UI builder to compose, format, and copy complex cURL HTTP request commands.

🗄️ Developer

SQL INSERT to JSON Converter

Parse SQL INSERT INTO statements and convert data rows into clean JSON arrays.

📦 Developer

JSON to XML Converter

Transform JSON objects and arrays into structured, indented XML with custom root tags.

📊

Markdown Table Generator

Interactive grid editor to visually design, format, and copy GitHub Markdown tables.

📋 Developer

HTML Table to CSV Converter

Extract clean CSV spreadsheet data from HTML <table> tags and website tables.

58B Developer

Base58 Encoder & Decoder

Encode text and hex to Bitcoin / IPFS Base58 format and decode Base58 strings back.

🏷️ Developer

Semantic Version Checker & Range Matcher

Validate semver versions, compare release tags, and test npm semver ranges (^, ~, >=).

🔒

Linux Chmod Permissions Calculator

Interactive Linux file permissions calculator with octal numbers (755, 644) and symbolic notation.

☁️

CSS Box Shadow Generator

Visual slider editor for multi-layer CSS box shadows with live preview and ready code.

📐 Developer

CSS Clip-Path Shape Generator

Generate CSS clip-path polygon shapes: triangles, hexagons, stars, bubbles, and arrows.

🎨 Developer

Color Shades & Tints Generator

Generate 10-step Tailwind-style color palettes (50 to 950) from any single hex color.

⌨️ Developer

JavaScript Key Code Checker

Press any keyboard key to inspect event.key, event.code, event.keyCode, and modifier flags.

🔀 Developer

.htaccess Redirect & Rules Generator

Generate Apache .htaccess 301 redirects, SSL/HTTPS enforcement, and www canonicalization.

🆔 Developer

UUID Validator & Version Inspector

Validate UUID format, detect UUID version (v1-v5), verify RFC 4122 variant, and check nil UUIDs.

🖼️ Developer

SVG to Data URI Converter

Convert SVG code into URL-encoded or base64 CSS background-image and HTML img data URIs.

🌈 Developer

HEX to RGB & HSL Color Converter

Two-way color converter between HEX, RGB, RGBA, HSL, HSLA, and CSS color strings.

🌐

IPv4 Subnet & CIDR Calculator

Calculate subnet masks, network address, broadcast address, IP ranges, and usable hosts.

🔍 Developer

Code Diff & Text Comparison Viewer

Visual side-by-side or unified diff comparator with line-by-line colored change highlighting.

📝

Markdown Dummy Content Generator

Generate structured dummy Markdown articles with headings, lists, tables, and blockquotes.

📻 Text

NATO Phonetic Alphabet Translator

Spell out names, callsigns, and codes using standard NATO aviation phonetic words.

01X Text

Binary to Hexadecimal Converter

Convert raw binary bits (01001000) directly to Hexadecimal (48) and back with byte spacing.

🔀 Text

Text Scrambler & Anonymizer

Scramble words, randomize letter orders, or anonymize text for UI testing without leaking sensitive info.

➕ Text

Line Prefix & Suffix Adder

Add custom prefixes, suffixes, line numbers, or quotes to every line in a text list.

📧

Email Address Extractor

Extract, deduplicate, and sort all email addresses found in raw text or source code.

🔗 Text

URL Link Extractor

Find, extract, and deduplicate all HTTP and HTTPS web URLs from pasted text or source files.

📞 Text

Phone Number Extractor

Extract telephone numbers and mobile contacts from unstructured text and documents.

🔄 Text

ROT13 & ROT47 Cipher Tool

Encode and decode text using classic symmetric Caesar ROT13 and ROT47 ciphers.

🎨

ASCII Banner & Word Art Generator

Convert text headings into large retro ASCII art banners for code comments and terminal headers.

👻 Text

Zalgo Glitch Text Generator

Generate spooky, corrupted Zalgo text with customizable distortion and chaos intensity sliders.

🙃 Text

Upside Down & Reverse Text Generator

Flip text upside down and backwards (¿ʇxǝʇ uʍop ǝpᴉsd∩) using Unicode character inversion.

✂️ Text

Line Break & Hard Return Remover

Strip unwanted line breaks from PDF copies while preserving true paragraph breaks.

🧹 Text

Punctuation & Symbol Remover

Remove all punctuation marks, quotes, and symbols from text, leaving only clean alphanumeric words.

📈

CAGR Calculator (Compound Annual Growth Rate)

Calculate Compound Annual Growth Rate (CAGR), total growth percentage, and investment projections.

🏷️ Calculators

Sales Tax & Reverse Tax Calculator

Compute sales tax amount, total price with tax, or reverse-calculate pre-tax price from gross total.

🍽️

Split Bill & Tip Group Calculator

Evenly split restaurant bills and calculate tip percentages per person for dining groups.

🏃 Calculators

Running Pace & Marathon Finish Calculator

Calculate running pace (min/km, min/mile) and project finish times for 5K, 10K, Half, and Full Marathon.

🖥️ Calculators

Screen PPI & Pixel Density Calculator

Calculate pixels per inch (PPI), dot pitch (mm), total megapixels, and aspect ratio for any display.

🎯

ROAS (Return on Ad Spend) Calculator

Compute return on ad spend percentage, net advertising profit, and break-even ROAS benchmark.

⚖️ Calculators

Break-Even Point Calculator

Find the exact unit volume and dollar revenue where business costs equal revenues.

🌙

Sleep Cycle & Bedtime Calculator

Calculate optimal bedtime and wake-up times based on 90-minute REM sleep cycles.

🎓 Calculators

Weighted Semester Grade Calculator

Calculate weighted course grades and determine what score you need on the final exam.

💼 Calculators

Freelance Hourly Rate Calculator

Calculate required freelance hourly and daily billing rates to reach target annual income after expenses.

💪 Calculators

Body Fat Percentage Calculator (US Navy)

Estimate body fat percentage, lean body mass, and fat mass using official US Navy circumference measurements.

🎨

Image Color Palette Extractor

Extract dominant color swatches, hex codes, and RGB values from any uploaded image using canvas.

🏷️

Image Watermark Adder

Add customizable text or logo watermarks with opacity, rotation, and tiling controls.

🌓 Image

Photo Negative & Color Inverter

Invert image colors to create negative film effects or high-contrast color inverses.

🌫️ Image

Image Blur & Filter Tool

Apply customizable Gaussian blur, contrast, and brightness adjustments to images locally.

👾 Image

Pixelate Image & Censor Tool

Pixelate photos or censor sensitive parts with customizable block size sliders for privacy.

🔄 Image

Image Flip & Rotate Tool

Mirror images horizontally, flip vertically, or rotate by 90°, 180°, and 270° degrees.

🔢

PDF Page Numberer

Stamp sequential page numbers (Page X of Y) onto any PDF document with custom positioning.

ℹ️ Pdf

PDF Metadata Viewer & Editor

Inspect and edit PDF document properties: Title, Author, Subject, Keywords, and Creator info.

🖨️ Pdf

PDF to Grayscale (Black & White) Converter

Convert color PDF pages to clean black-and-white / grayscale documents to save printer ink.

📄

PDF Blank Page Remover

Detect and automatically remove blank or empty white pages from scanned PDF documents.

🪄 Image

Background Remover

Remove backgrounds from photos, logos, products, and graphics locally to create transparent PNGs.

📄 Pdf

DOCX to Text Converter

Extract clean plain text from Word (.docx) documents in your browser with formatting options.

📑 Pdf

DOCX to PDF Converter

Convert Microsoft Word (.docx) documents to high-quality PDF files completely in your browser.

🌐 Pdf

DOCX to HTML Converter

Convert Word (.docx) documents to clean, semantic HTML5 markup with live preview.

Frequently Asked Questions

Everything you need to know about privacy, performance, and document processing on ToolMint

How do ToolMint tools work completely offline and private?

Every tool on ToolMint executes 100% locally in your web browser using HTML5, modern WebAssembly, and client-side JavaScript engines (including pdf-lib, pdf.js, and html2canvas). Your files, documents, images, and text inputs are processed strictly inside your device's local memory and are never uploaded, stored, or transmitted to any remote server or third-party cloud.

How does the progress bar and generation indicator work?

Heavy document and image tasks (such as merging PDFs, HTML-to-PDF conversion, text-to-PDF generation, or multi-page rendering) include real-time visual progress bars. You will see live percentage counters, step-by-step progress messages, and a dedicated download action box once generation completes so you always know exactly what is happening.

Is ToolMint safe for confidential company or personal documents?

Yes. Because zero network requests are made with your file data, ToolMint is safe for confidential contracts, financial spreadsheets, passwords, JWT tokens, and private photos. You can even disconnect your internet connection entirely after the page loads and continue using all tools offline.

Can I use ToolMint on mobile phones and tablets?

Yes. ToolMint is designed mobile-first with responsive layouts, touch-friendly 44px+ tap targets, quick search with shortcut keys, and instant category filters. Whether you are on an iPhone, Android smartphone, iPad, or 4K desktop monitor, the layout automatically adapts for seamless usability.

Do I need to create an account or pay any fees?

No account or signup is required. You can use any of our 200+ browser tools with 10 free actions every day, resetting at midnight. If you need unlimited daily actions, ToolMint Pro is available for a one-time payment of $1 USD / ₹89 INR with lifetime access.

What file formats are supported for conversion and editing?

ToolMint supports PDF, HTML, Markdown, CSV, JSON, XML, CSS, JavaScript, PNG, JPG/JPEG, WebP, GIF, and SVG files with one-click direct file downloads.