The All-in-One
High-Traffic Web Toolkit
Fast, private PDF editors, financial calculators, developer utilities, and image compressors — processing entirely inside your browser.
Most Popular Tools
Used by thousands of users every day.
Word Counter
Count words, characters, and reading time.
Grammar Checker
Check grammar and spelling errors.
ATS Resume Scanner & Matcher
Scan resume for ATS compatibility and match against job descriptions.
Image to Text (Online OCR)
Extract editable text from images, screenshots, and documents.
AI Humanizer Prompt
Generate prompt to humanize AI text.
JSON Formatter
Prettify and validate JSON data.
JSON to CSV / CSV to JSON
Convert JSON data to CSV format and vice versa.
Diff Checker / Text Compare
Compare two text snippets or code files side-by-side.
Password Generator
Create strong, secure passwords.
Image Compressor
Reduce image file size.
Explore Tools by Category
Filter and browse all 89 free web utilities with zero page reloads.
Word Counter
Count words, characters, and reading time.
Character Counter
Count characters with/without spaces.
Case Converter
Convert text case (Upper, Lower, Title, etc).
Lorem Ipsum Generator
Generate dummy text for designs.
Grammar Checker
Check grammar and spelling errors.
Paraphraser
Rewrite text with different words.
Text Summarizer
Summarize long text into key points.
Text to Speech
Convert text to natural speech audio.
ATS Resume Scanner & Matcher
Scan resume for ATS compatibility and match against job descriptions.
Image to Text (Online OCR)
Extract editable text from images, screenshots, and documents.
AI Humanizer Prompt
Generate prompt to humanize AI text.
Study Notes Prompt
Generate prompt for flashcards & notes.
JSON Formatter
Prettify and validate JSON data.
JSON to CSV / CSV to JSON
Convert JSON data to CSV format and vice versa.
Diff Checker / Text Compare
Compare two text snippets or code files side-by-side.
Markdown to HTML Converter
Convert Markdown formatted text into clean HTML code.
SQL Query Formatter
Beautify and format complex SQL queries instantly.
Hash Generator (MD5/SHA256)
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes.
UUID Generator
Generate unique identifiers (v4).
Base64 Encoder
Encode and decode Base64 data.
CSS Minifier
Remove whitespace and comments from CSS.
JavaScript Minifier
Minify JavaScript to reduce file size.
Regex Tester
Test regular expressions with live match highlighting.
JWT Decoder
Decode and inspect JSON Web Tokens.
HTML Minifier
Minify HTML to reduce page load time.
Regex Prompt Generator
Generate prompt to build Regex patterns.
CSS/HTML Beautifier & Minifier
Format and minify CSS/HTML code.
Password Generator
Create strong, secure passwords.
Password Strength Checker
Check password security strength.
Random Number Generator
Generate random integers.
Unit Converter
Convert length, weight, and more.
Time Zone Converter
Check time across different zones.
Image Compressor
Reduce image file size.
Image Resizer
Change image dimensions.
Image Cropper
Crop images to custom size.
Image Format Converter
Convert between PNG, JPG, WEBP.
Color Picker
Extract colors from images.
HEX to RGB Converter
Convert color codes.
QR Code Generator
Create QR codes instantly.
URL Encoder/Decoder
Encode and decode URLs.
Timestamp Converter
Convert Unix timestamps.
Random String Generator
Generate random strings.
PDF Merger
Combine multiple PDFs into one.
PDF Splitter
Extract pages from your PDF.
PDF Compressor
Reduce PDF file size.
PDF to Word
Convert PDF to DOCX.
Word to PDF
Convert DOCX to PDF.
PDF to JPG
Convert PDF pages to images.
JPG to PDF
Convert images to PDF.
PDF Page Organizer
Reorder PDF pages.
PDF to Grayscale (B&W)
Convert color PDF to black & white for exam & portal upload limits.
PDF Page Rotator
Rotate PDF pages.
PDF Page Remover
Delete unwanted pages.
Meta Tag Generator
Generate SEO meta tags for HTML.
Robots.txt Generator
Create robots.txt for search engines.
Sitemap Generator
Generate XML sitemap for your site.
UTM Builder
Create UTM tracking URLs for campaigns.
Open Graph Preview
Preview social media link appearance.
Website Speed Checker
Analyze page load performance.
Website Screenshot
Capture website screenshots online.
Favicon Generator
Generate favicons in multiple sizes.
Keyword Density Checker
Check keyword frequency in text.
HTML Headings & Meta Tag Analyzer
Analyze SEO tags of any URL.
LinkedIn Post Formatter
Format LinkedIn text with bold, italic unicode fonts and preview feed cutoff.
WhatsApp Link & QR Generator
Create direct click-to-chat WhatsApp links (wa.me) with pre-filled text & QR code.
YT Thumbnail Downloader
Get YouTube thumbnails.
IG Font Generator
Stylish fonts for bio.
Free Resume Builder (10+ Templates)
Build professional, ATS-optimized resumes with 10+ free templates & PDF download.
GST Invoice Generator
Create professional PDF invoices with GST tax & UPI QR codes.
EMI Calculator
Calculate loan EMI and payment schedule.
SIP Calculator
Calculate SIP returns and wealth growth.
Step-Up SIP Calculator
Calculate top-up SIP returns with annual increments.
In-Hand Salary Calculator
Calculate take-home pay from CTC under 2026-27 New Tax Regime.
Gratuity Calculator
Calculate statutory gratuity amount and ₹20 Lakh tax exemption.
Rent Receipt Generator
Generate monthly/annual PDF rent receipts for HRA tax exemption claims.
Notice Period & LWD Calculator
Calculate official Last Working Day, leave adjustments, and notice buyout.
EPF / PF Calculator
Calculate Employee Provident Fund interest, split & maturity corpus.
SWP Calculator
Calculate Systematic Withdrawal Plan monthly payouts and corpus.
CAGR Calculator
Calculate compound annual growth rate.
Loan Interest Calculator
Calculate loan interest and total payment.
Mortgage Calculator
Calculate home loan payments.
Compound Interest Calculator
Calculate investment growth over time.
Percentage Calculator
Calculate percentages and changes.
GST & Sales Tax Calculator
Calculate net price, gross price, and GST amount.
Hours & Timesheet Calculator
Calculate total work hours, breaks, and earnings.
TDEE & Calorie Calculator
Calculate daily calories, BMR, and macro targets.
BMI Calculator
Calculate Body Mass Index.
Age Calculator
Calculate exact age from birth date.
Date Difference Calculator
Calculate days between dates.
Browse Category Hubs
Deep-dive into specialized tool suites for developers, writers, and accountants.
Text Tools
Format, analyze, and manipulate text with powerful tools.
Developer Tools
Utilities for coding and data manipulation.
Security & Random
Secure passwords and random data generation.
Converters
Convert between different units and measurements.
Image Tools
Compress, resize, crop, and convert images.
Color & Design
Color conversion and design utilities.
Web Utilities
URL encoding, timestamps, and web dev tools.
PDF Tools
Merge, split, compress, and convert PDF files.
SEO Tools
Optimize your website for search engines and social media.
Social Media & Creator Tools
Tools for content creators, marketers, and founders.
Calculators & Career
Financial, employment, salary, and math calculators.
Three Simple Steps
Zero login, zero downloads, pure instant results.
Pick Any Tool
Search or click into any of our 70+ utilities across PDF, Image, Code, and Finance.
Paste or Drop
Enter your figures, paste your code, or drag your files directly into the interactive workspace.
Instant Download
Your output compiles in milliseconds in memory. Copy, save, or download with 1 click.
Why Thousands Choose Central Tools
Engineered from the ground up with a privacy-first mindset.
100% In-Browser Privacy
Files and numbers are processed in your local computer memory with WebAssembly and Web Crypto.
Instant Execution
Zero upload queues, no server lag, and no waiting in conversion lines.
Zero Paywalls & Limits
No premium subscriptions, no daily conversion limits, and no watermark traps.
Fully Responsive
Works seamlessly across mobile smartphones, tablets, and desktop workstations.
Ready to Accelerate Your Workflow?
Start using any of our 70+ tools now. No registration, no downloads, and 100% free forever.
Explore All 70+ Tools