Free online tools
Image and icons
Image Compressor
Compress JPG, PNG, and WebP images in your browser.
Image Resizer
Resize images by width and height with aspect ratio control.
JPG to PNG Converter
Convert JPG and JPEG files into clean PNG output.
Image to JPG Converter
Convert JPG, PNG, WebP, or GIF files into JPG output in one browser-based tool.
Image to PNG Converter
Convert common image files into PNG output for editing and transparent-ready tasks.
Image to WebP Converter
Turn common image files into WebP output for smaller web-friendly delivery.
GIF Generator
Combine multiple still images into one animated GIF file with adjustable frame timing.
HEIC Viewer
Open all supported images in a HEIC or HEIF file and save PNG, JPG or a ZIP.
SVG Whitespace Remover
Tighten the SVG viewBox around the actual artwork and remove extra canvas space.
Base64 Image Converter
Convert images to Base64 data URLs and restore Base64 strings back to images.
Image Data URL and Blob URL
Turn an image into a data URL or a temporary blob URL that works only in this browser.
Favicon Generator
Generate common favicon PNG sizes and a simple web manifest from one source image.
Stamp Image Maker
Generate a clean stamp-style PNG image with text, shape, and ink color controls.
PDF tools
PDF Merge
Combine multiple PDF files into one ordered document and review the file order before downloading.
PDF Split
Split a PDF by page ranges or individual pages.
PDF Page Remover
Remove selected pages from a PDF and save the remaining pages as a new file.
PDF Simple Edit and Sign
Draw a signature and place it on a selected PDF page for a fast signed export.
PDF to JPG Converter
Render PDF pages into JPG image files from the browser.
PDF to PNG Converter
Render PDF pages into PNG image files for crisp previews and editing work.
PDF Page Half Splitter
Split each PDF page into separate left and right half pages.
PDF Two-Up Combiner
Place two PDF pages side by side on one output page.
PDF Margin Cropper
Trim top, right, bottom, and left margins from every page in a PDF.
Image to PDF Converter
Turn one or more images into a single downloadable PDF document.
Text and writing
EML Viewer
Open EML email files in the browser and inspect headers, plain text, HTML, and attachments.
Word Counter
Count words, characters, sentences, paragraphs, and reading time.
Character Counter
Check character counts, space-free counts, lines, and supporting text metrics.
Text Case Converter
Convert text to title case, sentence case, camelCase, snake_case, and more.
Special Character Table
Copy symbols, arrows, currency marks, and math characters fast.
SMI to SRT Converter
Convert old SMI subtitle timing into modern SRT blocks from one text page.
Korean Keyboard Converter
Fix text typed on the wrong Korean or English keyboard layout and recover the intended input.
Read Text Aloud
Play text aloud with the voices your browser and device provide.
Dictate to Text
Speak into the microphone and edit the transcript as it appears.
Slug Generator
Turn titles and phrases into clean URL slugs for SEO and publishing.
Line Sorter
Sort multi-line text alphabetically or numerically in one click.
Line Reverser
Reverse multi-line text order for keyword blocks, task lists, logs, and pasted rows without manually editing each line.
Whitespace Cleaner
Trim extra spaces and blank lines from messy text blocks.
Remove Duplicate Lines
Clean duplicate lines from multi-line text with trimming and case options.
Text Diff Checker
Compare two text blocks line by line and highlight added, removed, and matching lines.
Developer and data
Base64 Encode and Decode
Encode plain text to Base64 and decode it back safely.
JSON Formatter and Validator
Pretty-print, minify, and validate JSON with parse error feedback.
URL Encode and Decode
Encode and decode URL strings with safe error handling.
CSV to JSON Converter
Convert CSV rows into JSON, with or without a header row.
JSON to CSV Converter
Convert JSON objects or arrays into spreadsheet-ready CSV output.
Unix Timestamp Converter
Convert Unix timestamps into readable dates and turn dates back into Unix seconds or milliseconds.
HTML Escape and Unescape
Encode and decode HTML entities safely for code and content tasks.
Encoding Toolkit
Encode and decode URL, Base64, HTML, and Unicode values from one tool.
HTML Entity Table
Reference common HTML entities for quotes, arrows, spacing, marks, and typographic punctuation.
ASCII Code Table
See printable ASCII rows and control codes with decimal and hexadecimal values.
Code Formatter
Apply lightweight formatting to JSON, HTML, CSS, and JavaScript snippets.
Code Minifier
Minify JSON, HTML, CSS, and JavaScript snippets by stripping extra whitespace and noise.
Keyboard Event Viewer
Inspect key values, key codes, and modifier states from live keyboard events.
HTML Source Viewer
Fetch a page URL and inspect its raw HTML source, title, language, and extracted body text.
Web Editor
Edit HTML, CSS, and JavaScript in one live preview workspace.
File Checksum Lookup
Calculate CRC32, SHA-256, SHA-384, and SHA-512 checksums for an uploaded file.
Converters
Time Zone Converter
Convert the same date and time between major global time zones.
Unit Converter
Convert length, weight, temperature, and data size from one page.
Length Converter
Convert millimeters, centimeters, meters, inches, feet, and miles.
Weight Converter
Convert grams, kilograms, pounds, ounces, and metric tons.
Temperature Converter
Convert Celsius, Fahrenheit, and Kelvin with visible formulas so weather, cooking, science, and device specs stay comparable.
Data Size Converter
Convert bytes, KB, MB, GB, and TB using binary units.
Speed Converter
Convert km/h, mph, m/s, knots, and related speed units in one place.
Area Converter
Convert square meters, hectares, acres, and other area units instantly.
Volume Converter
Convert liters, milliliters, cups, gallons, and other volume units.
Pressure Converter
Convert bar, kPa, psi, atmosphere, and other pressure units.
Energy Converter
Convert joules, calories, kilowatt-hours, watt-hours, and other energy units.
Fuel Economy Converter
Compare km/L, L/100km, US mpg, and UK mpg from one page.
Angle Converter
Convert degrees, radians, gradians, arcminutes, and arcseconds.
Utility and generators
QR Code Generator
Generate QR codes for links, text, email, phone, contact cards, or Wi-Fi.
Password Generator
Create random passwords with length and character-set controls.
UUID Generator
Generate one or many UUID v4 values instantly in the browser.
Hash Generator
Compare CRC32 and SHA-256, SHA-384, SHA-512 hashes for text or files.
Random Number Generator
Generate random integers or decimals with count and duplicate controls.
Lotto Number Generator
Generate 6-number lotto sets plus a bonus number for quick random picks.
Barcode Generator
Generate CODE128, EAN, and UPC barcodes as crisp SVG output.
Barcode Scanner
Read barcode and QR values from an image or camera in the browser.
Original URL Expander
Follow shortened or redirecting links and reveal the final destination URL.
IP Lookup
Check the current request IP address, forwarded information, and browser metadata.
Flashlight
Toggle the device camera torch on supported mobile browsers.
Postcode Lookup
Open a Korean postcode search flow and capture the selected road or jibun address.
RSS and Web Viewer
Open an RSS feed or web page URL and preview feed items or extracted article text.
Color Table
Convert HEX, RGB, HSL, and alpha; compare text and background contrast.
Text Encryption
Encrypt or decrypt text with password-based AES-GCM directly in the browser.
Calendar Print
Generate a clean printable month calendar with week-start controls.
Habit Tracker Maker
Create a printable monthly habit tracker grid from your own list of routines.