Every Tool You Need,
Running Entirely In Your Browser
Compress images, merge PDFs, calculate EMIs, format JSON, generate passwords and build QR codes — instantly, privately and without uploading your files. Free, with no account, no daily limit, and no watermark.
Explore All 36+ Web Utilities
Pick any tool below — every one opens instantly with zero setup.
No tool matches that search. Try “image”, “pdf”, “colour” or “password”.
Image Tools
6 toolsCompress, resize, convert, crop and create passport photos instantly — all inside your browser.
Image Compressor
Compress JPG, PNG and WEBP images with a custom quality slider and instant size comparison.
Open toolImage Resizer & Scaler
Resize images by pixel dimensions or percentage, with ready-made social media ratios.
Open toolImage Format Converter
Convert photos between PNG, JPG, WEBP and BMP formats without losing quality.
Open toolPassport Photo Maker
Create compliant 2x2 in and 35x45 mm passport photos with custom backgrounds and print grids.
Open toolImage Cropper & Rotate
Crop, rotate, flip and adjust the brightness of any picture.
Open toolImage to Base64
Convert any image into a Base64 data URI, CSS background or ready-made HTML tag.
Open toolPDF Tools
4 toolsMerge, split, watermark and build PDFs securely — your documents never leave the device.
PDF Merger
Combine multiple PDF documents into one organised file, with drag-to-reorder pages.
Open toolPDF Splitter & Extractor
Extract specific pages or split a multi-page PDF into separate documents.
Open toolImage to PDF Converter
Turn single or multiple JPG/PNG images into a clean PDF with a custom page layout.
Open toolPDF Watermark Tool
Stamp custom text watermarks with angle, opacity and colour onto every PDF page.
Open toolFinance Tools
5 toolsPlan loans, SIPs, taxes and savings with live, accurate maths and charts.
EMI & Loan Calculator
Monthly EMI, interest breakdown and a full amortisation schedule with charts.
Open toolSIP & Investment Calculator
Project wealth growth from systematic investment plans with monthly compounding.
Open toolCompound Interest Calculator
Compute compound growth with periodic contributions and any compounding frequency.
Open toolGST & Sales Tax Calculator
Calculate GST inclusive and exclusive pricing with standard or custom tax slabs.
Open toolDiscount & Savings
Find the discounted price, your savings and the final bill with promo and tax rates.
Open toolText Tools
5 toolsCount, convert, compare and publish text with a couple of clicks.
Word & Character Counter
Count words, characters, sentences, reading time and keyword density.
Open toolCase Converter
Switch text to UPPERCASE, lowercase, Title Case, camelCase, snake_case or kebab-case.
Open toolDiff Checker
Compare two snippets side by side with colour-coded additions and deletions.
Open toolLorem Ipsum Generator
Generate dummy placeholder text by paragraphs, sentences or words.
Open toolMarkdown Live Editor
Write Markdown with a live HTML preview, word stats and one-click export.
Open toolDeveloper Tools
7 toolsFormat JSON, hash data, test regexes, decode JWTs and generate UUIDs in one place.
JSON Formatter & Validator
Format, validate and minify JSON, with an expandable tree view of the structure.
Open toolBase64 Encoder / Decoder
Encode and decode text to and from standard or URL-safe Base64.
Open toolHash & Checksum Generator
Compute MD5, SHA-1, SHA-256, SHA-384 and SHA-512 digests instantly.
Open toolRegex Tester & Debugger
Test regular expressions with live match highlighting and capture groups.
Open toolUUID / GUID Generator
Generate random v4 UUIDs one by one or in bulk, with upper, lower and brace styles.
Open toolUnix Timestamp Converter
Convert Unix epoch seconds and milliseconds into readable dates and back.
Open toolJWT Token Decoder
Decode JWT headers, payloads, expiry times and claims right in the browser.
Open toolColor & Design
3 toolsConvert colours, build gradients and pull palettes straight out of your images.
Color Converter & Picker
Convert between HEX, RGB, HSL and CMYK with WCAG contrast ratio checks.
Open toolCSS Gradient Generator
Create multi-stop linear and radial gradients and copy the CSS code.
Open toolImage Palette Extractor
Extract the dominant colour palette and hex codes from any image.
Open toolUtilities & Media
6 toolsQR codes, barcodes, passwords, speed tests, unit conversion and timers.
QR Code Generator
Generate high-resolution QR codes for URLs, text, WiFi, vCards and email.
Open toolBarcode Generator
Create CODE128, EAN, UPC and CODE39 barcodes for products and stock.
Open toolStrong Password Generator
Generate cryptographically random passwords with an entropy and crack-time meter.
Open toolInternet Speed Test
Measure latency, jitter, download and upload speed with live gauges.
Open toolMulti-Unit Converter
Convert length, weight, temperature, storage, speed and area units.
Open toolStopwatch & Countdown
A precision stopwatch with lap times and a configurable countdown timer.
Open toolWhy GadgetZone Runs Entirely Client-Side
Typical online utilities make you upload photos, contracts and bank statements to somebody else’s server. Those files then sit on remote disks waiting to be leaked. GadgetZone does the opposite.
Frequently Asked Questions
Everything you might want to know before you start.
No. 100% of the processing happens locally inside your browser using the HTML5 Canvas API, the Web Crypto API and pure JavaScript. Your photos, PDFs, tokens and secrets never touch an external server or database.
Yes — every tool is free with no subscriptions, no credit-card prompts, no daily limits and no watermarks on anything you create.
Modern browsers can run high-performance compiled binary code (WebAssembly) and native graphics pipelines (HTML5 Canvas). GadgetZone uses those client-side engines to manipulate binary file data directly in your device’s RAM.
Because everything is local, limits only come from your own device’s available memory. You can comfortably process large high-resolution images and multi-page PDFs.
Yes. Once the page has loaded, all scripts and assets are cached by your browser, so you can keep compressing, calculating and generating even when the connection drops.
Never. All generators operate purely in volatile memory. Nothing is transmitted and nothing is persisted — close the tab and it is gone.