Free · Private · No sign-up
Tools that live in your browser, not on a server.
Every tool on WebToolNook runs locally on your device. Your photos and data never get uploaded anywhere — which also means results are instant.
- Nothing uploaded
- No watermarks
- Works offline
- Instant results
Image Tools
See all →Edit and convert images entirely in your browser — nothing is uploaded to a server.
Background Remover
Remove the background from any photo instantly, right in your browser. Nothing is uploaded — your images never leave your device.
Open tool →Image Cropper & Resizer
Crop and resize images visually with draggable boundaries, right in your browser. Lock to an aspect ratio or set an exact output size.
Open tool →Image Format Converter
Convert HEIC, PNG, JPG, or WebP images entirely in your browser — including HEIC photos from iPhone. No uploads, no signup.
Open tool →Design & CSS
See all →Visual generators for CSS, color, and layout code.
CSS Box Shadow Generator
Design layered CSS box shadows visually and copy the finished code — including neumorphism and soft-UI presets.
Open tool →CSS Gradient Generator
Design linear, radial, and conic CSS gradients visually with multiple color stops, and copy the CSS or a Tailwind class.
Open tool →Color Palette Extractor
Pull the dominant colors out of any photo and export them as hex, CSS variables, Tailwind config, or SCSS — right in your browser.
Open tool →Everyday & Business
See all →Quick calculators and generators for common tasks.
Password Generator
Generate strong, random passwords or memorable passphrases. Everything happens locally — nothing is sent anywhere.
Open tool →QR Code Generator
Turn a link, WiFi network, contact card, or plain text into a downloadable QR code — as PNG or SVG, entirely in your browser.
Open tool →Percentage Calculator
Calculate percentages, percentage increase or decrease, percentage change, and reverse percentages — instantly, entirely in your browser.
Open tool →GPA & Grade Calculator
Calculate your weighted GPA from a list of courses, or find out exactly what score you need on a final exam.
Open tool →Salary Negotiation Calculator
See exactly what a bigger raise or counter-offer is worth over your whole career — not just this year.
Open tool →Developer Tools
See all →Format, convert, and validate data formats — entirely in your browser, nothing uploaded.
JSON Formatter & Validator
Format, beautify, validate, and minify JSON online. Pinpoints syntax errors with line and column numbers — entirely in your browser, nothing uploaded.
Open tool →JSON to CSV Converter
Convert JSON to CSV or CSV to JSON in your browser. Flattens nested objects, handles quoted fields, and downloads the result — no uploads, no signup.
Open tool →Base64 Encode & Decode
Encode text or files to Base64 and decode Base64 back to text in your browser. Full UTF-8 support, URL-safe mode, and instant copy — no uploads, no signup.
Open tool →JWT Decoder
Decode a JWT to read its header and payload claims instantly in your browser. Shows expiry and issued-at as readable dates — nothing is uploaded, no secret needed.
Open tool →URL Encoder & Decoder
URL-encode or decode text and query strings in your browser. Switch between component and full-URL encoding, with a live query-string breakdown. No uploads, no signup.
Open tool →Text Tools
See all →Transform, clean, and rearrange text line by line — instantly, in your browser.
Word & Character Counter
Count words, characters, sentences, and paragraphs live as you type, with limits for Twitter/X, SMS, and meta descriptions.
Open tool →Reverse Text & Backwards Text
Reverse text and create backwards text instantly — flip characters, word order, each word, or line order. Free, no signup, and it all runs in your browser.
Open tool →Remove Duplicate Lines
Remove duplicate lines from text online and keep only unique lines. Options to ignore case, trim spaces, and drop blank lines — instantly, in your browser.
Open tool →Sort Text Lines
Sort lines alphabetically, numerically, or by length, ascending or descending. Optionally remove duplicates and blank lines — free, no signup, in your browser.
Open tool →Text Repeater
Repeat text as many times as you want, on new lines, with spaces, commas, or a custom separator. Copy the result instantly — free and entirely in your browser.
Open tool →Slug Generator
Turn any title or text into a clean, SEO-friendly URL slug. Transliterates accents, lowercases, and joins with hyphens or underscores — instantly, in your browser.
Open tool →