151 tools · runs in your browser
A well-kept toolkit,
not a junk drawer.
Free browser tools for PDFs, images, code, and text. Your files and text stay on your device — nothing is uploaded to a server.
Try "csv json" or "hash"
Merge PDFs
Combine multiple PDFs into one file.
PDF·02Split PDF
Split a PDF into separate files: every page, custom page ranges, or every N pages. Free PDF cutter that runs in your browser, no upload.
PDF·03Rotate PDF Pages
Rotate every page in a PDF by 90/180/270°.
PDF·04Extract PDF Pages
Extract pages from a PDF: pick the pages you need and save them as a new PDF. Free, in your browser, no upload.
PDF·05Delete PDF Pages
Remove specific pages, keep the rest.
PDF·06Reorder PDF Pages
Change the order of pages in a PDF.
PDF·07Crop PDF Pages
Trim margins from every page in a PDF.
PDF·08Compress PDF
Shrink a PDF's file size.
PDF·09Watermark PDF
Stamp text across every page of a PDF.
PDF·10Add Page Numbers
Number every page of a PDF automatically.
PDF·11Sign PDF
Sign a PDF online for free: draw your signature and stamp it onto any page. No printing, no signup, no upload.
PDF·12PDF to Images
Convert every page of a PDF to PNG or JPEG.
PDF·13Images to PDF
Combine JPEG/PNG images into one PDF.
PDF·14PDF to Text
Extract the plain text content of a PDF.
PDF·15PDF Metadata Viewer
View a PDF's title, author, and page count.
Image
11 toolsResize & Compress Image
Resize, compress, and convert images.
IMG·02Image to Base64
Convert an image to a Base64 data URL.
IMG·03Rotate & Flip Image
Rotate and flip an image in your browser.
IMG·04Crop Image
Crop an image to a custom or preset aspect ratio.
IMG·05Add Border to Image
Add a solid color border/frame to an image.
IMG·06Watermark Image
Stamp text onto an image.
IMG·07Meme Generator
Add top/bottom caption text to an image.
IMG·08Favicon Generator
Generate a full favicon/app-icon set from one image.
IMG·09Color Picker from Image
Click a photo to sample any pixel's color.
IMG·10EXIF Viewer & Remover
View and strip a photo's hidden metadata.
IMG·11Batch Image Converter
Resize and convert many images at once.
QR & Barcodes
09 toolsQR Code Generator
Generate a QR code for any link or text.
QR·02WiFi QR Code
Generate a scannable QR code to join a WiFi network.
QR·03vCard QR Code
Generate a QR code for a shareable contact card.
QR·04Email/SMS/Call QR Code
Generate a QR code to trigger an email, text, or phone call.
QR·05Calendar Event QR Code
Generate a QR code that adds an event to a calendar.
QR·06Styled QR Code Generator
Custom-color QR codes with an optional center logo.
QR·07Barcode Generator
Generate CODE128, EAN, UPC and other barcode formats.
QR·08QR Code Scanner
Upload an image to decode a QR code.
QR·09Batch QR Code Generator
Generate a ZIP of QR codes from a list of links or text.
JSON
12 toolsJSON Formatter & Validator
Format, validate, and minify JSON.
JSON·02JSON to CSV
Convert a JSON array of objects to CSV.
JSON·03JSON to YAML
Convert JSON to YAML and back.
JSON·04JSON Tree View
Browse JSON as a collapsible tree.
JSON·05JSON Diff
Compare two JSON objects structurally.
JSON·06JSON to XML
Convert JSON to XML and back.
JSON·07JSON to TypeScript
Generate a TypeScript interface from JSON.
JSON·08JSON Schema Generator
Infer a JSON Schema from a sample.
JSON·09JSON Schema Validator
Validate JSON data against a schema.
JSON·10JSONPath Tester
Query JSON with a JSONPath expression.
JSON·11Sort JSON Keys
Sort object keys alphabetically.
JSON·12JSON Lines Validator
Validate and format JSONL files.
Color & CSS
21 toolsColor Picker & Palette
Pick a color and generate a palette.
CSS·02Gradient Generator
Build a CSS linear-gradient visually.
CSS·03Contrast Checker
Check WCAG contrast ratio between two colors.
CSS·04Color Shade Scale Generator
Generate a full 50-900 shade scale from one color.
CSS·05Palette from Image
Extract the dominant colors from a photo.
CSS·06Color Mixer
Blend two colors together.
CSS·07Color Blindness Simulator
Preview a color under color blindness.
CSS·08Named Color Reference
Browse and search all CSS named colors.
CSS·09Color Palette Reference
Browse a full Tailwind-style color palette.
CSS·10Box Shadow Generator
Design a CSS box-shadow visually.
CSS·11Border Radius Generator
Design a CSS border-radius visually.
CSS·12Clip Path Shapes
Generate CSS clip-path shapes like triangles and hexagons.
CSS·13Fluid Typography
Generate a CSS clamp() for responsive font sizing.
CSS·14Flexbox Playground
Visually build a CSS flexbox layout.
CSS·15CSS Grid Generator
Visually build a CSS grid layout.
CSS·16Cubic Bezier Generator
Design a custom CSS easing curve visually.
CSS·17CSS Animation Generator
Build @keyframes animations visually.
CSS·18CSS Filter Generator
Design blur, brightness, and other CSS filters visually.
CSS·19Text Shadow Generator
Design a CSS text-shadow visually.
CSS·20Glassmorphism Generator
Design a frosted-glass CSS effect visually.
CSS·21CSS Unit Converter
Convert between px, rem, pt, and percent.
Text
29 toolsCase Converter
Convert text between upper, lower, camel, snake case, and more.
TXT·02Word & Character Counter
Count words, characters, and lines.
TXT·03Text Diff
Compare two blocks of text line by line.
TXT·04Lorem Ipsum Generator
Generate placeholder Lorem Ipsum text.
TXT·05Slug Generator
Convert text into a URL-friendly slug.
TXT·06Remove Duplicate Lines
Deduplicate lines in a block of text.
TXT·07Word Frequency Counter
Find the most frequent words in a block of text.
TXT·08Text Reverse
Reverse text by character, word, or line.
TXT·09Line Sorter
Sort lines alphabetically, by length, or numerically.
TXT·10Find & Replace
Bulk find and replace text, with optional regex.
TXT·11Fancy Text Generator
Convert text into Unicode bold, italic, script, and more styles.
TXT·12Readability Score
Check Flesch reading ease, grade level, and reading time.
TXT·13Text-to-Speech
Have any text read aloud in your browser.
TXT·14Speech-to-Text
Transcribe speech into text live.
TXT·15Whitespace Normalizer
Collapse extra spaces and blank lines.
TXT·16ROT13 / Caesar Cipher
Encode or decode text with a Caesar cipher.
TXT·17Palindrome Checker
Check whether a word or phrase is a palindrome.
TXT·18Markdown Previewer
Write Markdown and preview the rendered HTML live.
TXT·19Markdown Table Generator
Build a Markdown table visually, or paste a spreadsheet selection.
TXT·20HTML to Markdown Converter
Convert HTML into Markdown.
TXT·21Table of Contents Generator
Generate a linked TOC from Markdown headings.
TXT·22README Badge Generator
Build shields.io-style badges for GitHub READMEs.
TXT·23Markdown Cheatsheet
Quick reference for Markdown syntax.
TXT·24Regex Tester
Test regular expressions with live match highlighting.
TXT·25Regex Cheatsheet
Common regex patterns and what they mean.
TXT·26Regex Find & Replace
Find and replace text using capture groups.
TXT·27Regex Match Breakdown
See every match's capture groups individually.
TXT·28Regex Plain-English Explainer
Get a token-by-token explanation of a regex pattern.
TXT·29Common Regex Pattern Library
Browse categorized regex patterns for emails, dates, and more.
Security & Encoding
19 toolsPassword Generator
Generate strong, random passwords.
SEC·02Passphrase Generator
Generate a memorable random passphrase.
SEC·03Password Strength Checker
Check the strength and entropy of your own password.
SEC·04PIN Generator
Generate a random numeric PIN.
SEC·05Bulk Password Generator
Generate many passwords or passphrases at once.
SEC·06Username Generator
Generate random username suggestions.
SEC·07Secret/API Key Generator
Generate a random hex or Base64 secret key.
SEC·08Base64 & URL Encoder
Encode or decode Base64 and URL strings.
SEC·09JWT Decoder
Decode a JWT's header and payload.
SEC·10JWT Generator
Sign a JWT with HS256 directly in your browser.
SEC·11File ↔ Base64 Converter
Convert a file to Base64, or decode Base64 back to a file.
SEC·12HTML Entity Encoder/Decoder
Encode or decode HTML entities.
SEC·13Base32 Encoder/Decoder
Encode or decode Base32 strings.
SEC·14Punycode Converter
Convert internationalized domain names to and from Punycode.
SEC·15Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes.
SEC·16HMAC Generator
Generate an HMAC digest from a key and message.
SEC·17File Hashing
Compute SHA-256, SHA-512, SHA3-256, and CRC32 checksums of a file.
SEC·18Bcrypt Hash Generator/Checker
Generate a bcrypt hash or check a password against one.
SEC·19Checksum Verifier
Verify a downloaded file's checksum against an expected value.
Date & Time
09 toolsUnix Timestamp Converter
Convert between Unix timestamps and dates.
TIME·02Age Calculator
Calculate exact age from a birthdate.
TIME·03Date Difference Calculator
Find the difference between two dates.
TIME·04Timezone Converter
Convert a date & time across major world timezones.
TIME·05World Clock
See the live current time across multiple timezones.
TIME·06Countdown Timer
Count down live to a target date and time.
TIME·07Stopwatch
A stopwatch with lap timing.
TIME·08Business Days Calculator
Add or subtract business days, skipping weekends and holidays.
TIME·09Week Number Lookup
Find the ISO 8601 week number for any date.
Converters
05 toolsUnit Converter
Convert length, weight, temperature, area, volume, speed, data, time & pressure units.
CONV·02Number Base Converter
Convert between binary, octal, decimal, and hex.
CONV·03CSV ↔ JSON Converter
Convert CSV to JSON and back.
CONV·04Roman Numeral Converter
Convert numbers to and from Roman numerals.
CONV·05Cooking Measurement Converter
Convert cups, tablespoons, ml, and other cooking volumes.
Developer
11 toolsUUID Generator
Generate random UUIDs (v4).
DEV·02Cron Expression Parser
Translate a cron expression into plain English.
DEV·03HTTP Status Code Lookup
Search HTTP status codes and their meaning.
DEV·04.gitignore Generator
Build a .gitignore from language and editor templates.
DEV·05Meta Tag Generator
Generate Open Graph and Twitter Card meta tags.
DEV·06User-Agent Parser
Parse a User-Agent string into browser, OS, and device.
DEV·07Curl Command Builder
Build a curl command from method, headers, and body.
DEV·08Code Formatter
Beautify or minify JS, CSS, and HTML.
DEV·09Fake Data Generator
Generate mock names, emails, addresses as JSON or CSV.
DEV·10Placeholder Image Generator
Build a placeholder image data URL with custom size and color.
DEV·11JWT Generator
Sign a JWT with HS256 directly in your browser.
Calculators
10 toolsPercentage Calculator
Percentage of a number, and percentage change.
CALC·02BMI Calculator
Calculate Body Mass Index and category.
CALC·03Loan EMI Calculator
Calculate monthly loan EMI and total interest.
CALC·04Tip Calculator
Split a bill and calculate tip per person.
CALC·05Simple & Compound Interest
Calculate simple or compound interest.
CALC·06Discount / Markup Calculator
Calculate a sale price from a discount, or a markup price.
CALC·07GST / Sales Tax Calculator
Add or remove tax from a price.
CALC·08SIP / Investment Calculator
Project recurring investment growth over time.
CALC·09GPA / CGPA Calculator
Calculate GPA from course grades and credits.
CALC·10Mean / Median / Std. Deviation Calculator
Calculate statistics for a list of numbers.
Guides
- How to Decode a JWT Safely (Without Sending It to a Server)
- What a Cron Expression Actually Means (With Examples)
- How to Fix "Unexpected Token" and Other Invalid JSON Errors
- JSON vs YAML: When to Use Which
- Regex Cheatsheet for Beginners (With Copy-Paste Examples)
- Base64 Is Not Encryption (And Other Common Misconceptions)