82+ Free Online Tools That Run 100% in Your Browser

The complete Digital ToolPad collection — for developers and everyday tasks alike. Every tool runs entirely in your browser, so your data is never uploaded. No signup, works on any device.

82 Utilities
100% Local & Private

YAML Validator & Editor

Validate YAML syntax and structure with real-time error detection and syntax highlighting.

Data Formats

JSON Formatter & Validator

Format, validate, and beautify JSON data with interactive tree view and syntax highlighting.

Data Formats

CSV to JSON Converter

Convert CSV files to JSON format with support for various delimiters and real-time conversion.

Data Formats

JSON to CSV Converter

Convert JSON arrays to spreadsheet-ready CSV with proper quoting and custom delimiters. 100% in your browser.

Data Formats

Character Counter

Count characters, words, sentences, and lines in real time — with reading time, frequency analysis, and SEO length checks.

Text Processing

Word Counter

Count words, characters, sentences, and paragraphs as you type — with reading time, speaking time, and word frequency analysis.

Text Processing

Regex Tester & Builder

Test and build regular expressions with real-time matching and detailed explanations.

Text Processing

Base64 Encoder/Decoder

Encode and decode Base64 strings with support for text, images, and files.

Encoding

UUID Generator

Generate universally unique identifiers with support for different versions and bulk generation.

Data Formats

UUID v4 Generator

Generate random UUID v4 identifiers instantly — single or bulk up to 1000, in standard, compact, braces, or URN format.

Data Formats

UUID v7 Generator

Generate time-ordered UUID v7 identifiers — sortable, database-friendly, RFC 9562 compliant. Single or bulk up to 1000.

Data Formats

XSD Schema Viewer

Open and explore XML Schema Definition (XSD) files with interactive type navigation and detailed property analysis.

Data Formats

OG Image Generator

Create social-share images from customizable templates and download as PNG.

Design

Markdown to PDF Converter

Convert Markdown documents to PDF with live preview and one-click export.

Text Processing

Markdown to DOCX Converter

Convert Markdown documents to DOCX with live preview and one-click export.

Text Processing

Online Diff Checker

Compare two text documents side-by-side with highlighted differences. Line-by-line comparison with additions, deletions, and modifications.

Text Processing

Unix Timestamp Generator & Converter

Convert between Unix timestamps and human-readable dates. Generate current timestamps, convert to different timezones, and understand epoch time.

Data Formats

SQL Formatter & Beautifier

Format and beautify SQL queries with syntax highlighting, multiple dialect support, and customizable formatting options.

Database

QR Code Generator

Generate custom QR codes for URLs with customizable colors, sizes, backgrounds, and downloadable in multiple formats (PNG, SVG, PDF, JPG).

Design
Beta

PDF to DOCX Converter

Convert PDF files to DOCX with live preview and one-click export.

PDF

Markdown Preview

Write and preview Markdown with live HTML rendering, syntax highlighting, and LaTeX math support.

Text Processing
Beta

Image Resizer

Professional image resizing and cropping tool. Resize by dimensions, percentage, or social media presets. Export in multiple formats with file size control.

Design

HTML to Markdown Converter

Convert HTML to clean Markdown format with live preview. Perfect for documentation, blog posts, and content migration.

Text Processing

Regex Offline AI

AI-powered Regex Generator. Generate, test, and validate regular expressions with AI assistance.

Text Processing

Pomodoro Timer

Free online Pomodoro timer to boost productivity and focus. 25-minute work sessions, 5-minute short breaks, and 15-minute long breaks with sound notifications.

Productivity

Text Case Converter

Convert text between different case formats with live preview and one-click export.

Text Processing

Uppercase Converter

Convert any text to UPPERCASE instantly — paste, click, copy. Selection-aware, with live text statistics.

Text Processing

Lowercase Converter

Convert any text to lowercase instantly — fix Caps Lock accidents and normalize data with one click.

Text Processing

Title Case Converter

Capitalize The First Letter Of Every Word — perfect for headlines, titles, and headings. One click, in your browser.

Text Processing

Code Snippet Screenshot

Create beautiful screenshots of code snippets with customizable backgrounds, syntax highlighting, and social media branding. Perfect for sharing on Twitter, LinkedIn, and presentations.

Coding

Crontab Generator

Build and understand cron expressions with live description and next run times. Includes presets and cheatsheet.

Productivity

Random Name Picker

Spin the wheel to randomly select names for games, parties, board game nights, or any group activity. Fair, fun, and completely random selection.

Productivity

URL Encoder/Decoder

Encode and decode URLs with support for component-level and full URL encoding. Perfect for web development and SEO optimization.

Encoding

JSON to TypeScript Converter

Convert JSON objects to TypeScript interfaces instantly with customizable options and clean code generation.

Coding

Offline AI Chat

Chat with AI locally on your device using open-source language models. No internet connection required, ensuring privacy and security.

Productivity

Base64 to PDF Converter

Convert Base64 encoded data to PDF files instantly. Support for text, images, and custom content with real-time validation and preview.

PDF

Baby Name AI Generator

AI-powered baby name generator that runs 100% offline. Find the perfect name with meanings based on gender, cultural origin, name style, and more.

Lifestyle

Quote Image Maker

Create beautiful quote images with custom backgrounds, gradients, and social media branding. Perfect for Instagram, Twitter, Facebook, and TikTok.

Design

Bank Statement Converter

Easily convert PDF bank statements from thousands of banks worldwide into clean Excel (XLS) or CSV format. 100% free, secure, and accurate. Trusted by accountants and businesses.

Productivity

JSON to TOON Converter

Convert between JSON and TOON format to save 30-60% tokens for LLM prompts with bi-directional conversion.

Data Formats

GraphQL Schema Viewer

Visualize, validate, and explore GraphQL schemas (SDL) with an interactive type explorer and beautifier.

Database

Favicon Generator

Create professional favicons from images with customizable sizes, backgrounds, and formats (ICO, PNG, SVG).

Design

Online Notepad++

Notepad++-style multi-tab editor in your browser with auto-save, syntax highlighting, and 100% client-side storage.

Coding

JWT Decoder / Encoder

Instantly decode, verify, and generate JSON Web Tokens (JWT) locally in your browser. Supports HS256, RS256, and more.

Security

YAML to JSON Converter

Convert YAML data to JSON format instantly with a 100% offline, client-side tool.

Data Formats

JPG to PDF Converter

Convert JPG, PNG, GIF, BMP, and TIFF images to PDF instantly. 100% offline, secure, and fast with no file limits.

PDF

Maintenance Calorie Calculator

Highly functional, beautifully designed calorie calculator to determine your daily maintenance calories, BMR, and macro targets for weight loss or gain.

Lifestyle

Open Graph Preview

Preview and debug your Open Graph (OG) meta tags and Twitter Cards instantly. Auto-fetch from URLs.

Design

Merge PDF Files

Combine multiple PDFs into a single document instantly. Visually reorder every single page before merging. 100% private and secure.

PDF

HEX to RGB Converter

Convert HEX color codes to RGB format instantly. A 100% client-side tool with live color previews and CSS output generation.

Design

API Testing Tool

Test your REST APIs online instantly. A fast, free, and 100% client-side browser API testing tool with syntax highlighting, code snippets, and detailed responses.

Coding

RGB to HEX Converter

Convert RGB values to HEX color format instantly. A 100% client-side tool with live color previews and HEX code generation.

Design

World Time Converter

Visually convert and compare times across multiple cities securely in your browser. Easily coordinate meetings across timezones with a visual slider.

Productivity

Online Markdown Editor

Highly functional, fast, and beautifully designed Online Markdown Editor with a robust WYSIWYG side-by-side preview and offline sync.

Text Processing

WebP Converter

Convert JPG, PNG to WebP and vice versa. 100% browser-based batch image processing with quality control.

Design

PNG to WebP Converter

Convert PNG images to WebP in bulk — up to 26% smaller with transparency preserved. 100% in your browser, no uploads.

Design

WebP to PNG Converter

Convert WebP images to universally compatible PNG files with zero quality loss. 100% in your browser, no uploads.

Design

JPG to WebP Converter

Compress JPG photos into WebP files 25–34% smaller at the same visual quality. 100% in your browser, no uploads.

Design

WebP to JPG Converter

Convert WebP images to universally supported JPG files with adjustable quality. 100% in your browser, no uploads.

Design

HEIC to JPG Converter

Convert iPhone HEIC/HEIF photos to universal JPG files — decoded entirely on your device, photos never uploaded.

Design

Split PDF Files

Extract pages from a PDF or separate your document into multiple single-page files. Secure, fast, and completely free.

PDF

Base64 to Image Converter

Decode Base64 strings to images directly in your browser. 100% offline, private, and secure.

Encoding

AI Background Remover

Instantly remove image backgrounds for free using client-side AI. Add solid colors or download as transparent PNG.

Design

Citation Generator

Instantly generate accurate APA, MLA, Chicago, and Harvard citations. Export to Word or BibTeX.

Text Processing

Hash Generator

Secure, client-side hash generator supporting MD5, SHA-256, bcrypt, and more. Hash texts or files instantly offline.

Security

MD5 Hash Generator

Generate MD5 checksums from text or files instantly. 100% client-side — verify downloads and deduplicate files without uploading anything.

Security

SHA-256 Hash Generator

Compute SHA-256 hashes of text and files instantly. 100% client-side — verify release checksums and fingerprint data without uploading anything.

Security

Instagram Grid Maker

Split your photos into a perfect puzzle grid for Instagram. 100% free, highly functional, and preserves high-resolution quality.

Design

Remove Duplicate Lines & Sort

Free, client-side tool to remove duplicate lines, sort alphabetically, reverse, remove empty lines, and trim whitespace instantly.

Text Processing

JSON Semantic Diff & Compare

Compare two JSON objects semantically using our privacy-first, client-side tool. Identify structural differences, ignore key order and formatting effortlessly.

Data Formats

Photo Metadata Viewer

Securely discover hidden EXIF data, camera settings, and GPS location stored inside your images without any server uploads.

Design

Photo Metadata Remover

Securely scrub sensitive EXIF data, camera settings, and GPS coordinates from your images securely in your browser before sharing them.

Design

WebM to MP4 Converter

Convert WebM to MP4 for free. 100% client-side local conversion using WebAssembly for ultimate privacy.

Encoding

Remove Objects from Photos

Remove an object, person, text, or watermark from a picture. Just select the photo and paint over the selected item to clean up the picture.

Design

OpenAPI & Swagger Viewer

Open an OpenAPI 3.x or Swagger 2.0 file in JSON or YAML and explore endpoints, parameters, schemas, and responses in an interactive UI.

Coding

LLM Token Counter

Count tokens and estimate API cost for GPT-5, GPT-4o, Claude, Gemini, Llama and more — exact tiktoken counts, 100% in your browser.

Coding

GraphQL Formatter & Beautifier

Format, validate, and beautify GraphQL queries, mutations, and schemas with syntax highlighting and query analysis.

Database

GraphQL Minifier

Minify GraphQL queries and schemas into compact single-line strings — smaller payloads, ready to embed in code.

Database

GraphQL Validator

Validate GraphQL queries, mutations, and schemas as you type — syntax errors flagged with line numbers, plus query analysis.

Database

Compress PDF

Shrink PDF files to fit email and upload limits with three quality presets — processed 100% on your device, never uploaded.

PDF

BMI Calculator

Calculate your Body Mass Index in metric or imperial units, see your weight category, and find your healthy weight range.

Lifestyle

Password Generator

Generate strong random passwords with cryptographically secure randomness — length, character sets, and strength meter, all on your device.

Security

Coming Soon

Soon

XML Formatter & Validator

Format and validate XML documents with syntax highlighting and structure validation.

Data Formats
Soon

CSV Formatter & Validator

Format, validate, and analyze CSV files with data preview and structure validation.

Data Formats

Browse tools by category

Jump into a focused collection — each one groups related tools with guides and FAQs.

JSON Tools

Our free JSON tools run 100% locally in your browser, keeping your data private. Whether you need to format, validate, or convert JSON, these tools are fast, secure, and built for developers.

7 toolsExplore

YAML Tools

Our free YAML tools run 100% locally in your browser, keeping your data private. Whether you need to format, validate, or convert YAML, these tools are fast, secure, and built for developers.

2 toolsExplore

Markdown Tools

Our free Markdown tools help you write, convert, and preview Markdown documents with ease. Whether you're a developer or a writer, these tools are designed to enhance your productivity.

5 toolsExplore

PDF Tools

Our free PDF tools allow you to convert, view, and manage PDF documents easily. Whether you need to convert PDFs to other formats or vice versa, these tools are user-friendly and efficient.

8 toolsExplore

AI Tools

Our free AI tools run entirely in your browser using WebGPU and WebAssembly — chat with an offline LLM, generate regex from plain English, count LLM tokens, and more. No API keys, no signup, and your prompts never leave your device.

4 toolsExplore

Base64 Tools

Our free Base64 tools allow you to convert, view, and manage Base64 strings easily. Whether you need to convert Base64 strings to images or vice versa, these tools are user-friendly and efficient.

3 toolsExplore

Image Tools

Convert, resize, compress, and clean up images without uploading them anywhere. WebP, HEIC, PNG, and JPG conversion, background removal, metadata stripping, favicons, and more — every tool runs 100% on your device.

21 toolsExplore

Text Tools

Count words and characters, convert text case, compare documents, remove duplicate lines, and write distraction-free — all in your browser. No signup, and your text never leaves your device.

11 toolsExplore

Encoding Tools

Encode and decode Base64, URLs, and JWTs, and generate MD5 or SHA-256 hashes — entirely in your browser. Built for developers who don't want to paste tokens and secrets into someone else's server.

8 toolsExplore

Developer Tools

A full developer toolbox in the browser: regex testing, API requests, SQL and GraphQL formatting, UUID generation, timestamps, JWT decoding, diffs, and schema viewers. No install, no signup, and your code never leaves your machine.

26 toolsExplore

Productivity Tools

Simple, free tools for everyday work and life: a Pomodoro timer, world time zone converter, online notepad, random name picker, password generator, and more. No accounts, no installs — open a tab and go.

8 toolsExplore

Health Tools

Free health and fitness calculators that run entirely in your browser: check your BMI and weight category, estimate your maintenance calories, and plan from there. No signup — and your health data never leaves your device.

2 toolsExplore