All tools

List of Free Online Tools

SoupPot! is a collection of small online tools designed to help with everyday web use, development, writing, and security checks. The tools are organized by purpose so you can quickly access the ones you need.

Go directly to the tool you need

You can open frequently used conversion, generation, and verification tools with a single tap on their icons.

Quick access
Verify IP address Check the IP address and hostname Password generation Generate a secure password Character count Check character count and word count Generate UUID Generate a UUID v4 JSON Formatter Format and validate JSON CSV Viewer View and search CSV and TSV files in table format JSON ⇔ CSV Converter Convert between JSON, CSV, and TSV Base64 Encoding/Decoding Base64 conversion URL Encoding/Decoding Convert URL strings HTML Escape / Unescape You can convert special characters in HTML to character references, or convert character references back to their original characters. Markdown Editor Edit and preview Markdown Diff Checker Highlight the differences between the two texts in different colors Hash Generator all_tools.tool_hash_short Unix Timestamp Converter Convert date/time and Unix timestamps Generate a QR code Create a QR code Unit Conversion Instantly convert units of length, weight, temperature, and more Percentage Calculations Instantly calculate percentages, growth rates, and discounts Loan Calculator Calculate the repayment amount, total interest, and date of full repayment Discount Calculation Calculate the post-discount price, discount amount, and effective discount rate Age Calculation Instantly calculate age and elapsed days Date Calculations Calculate date differences and add/subtract dates Randomly generated Generate random numbers, strings, and lottery results all at once Image Format Conversion Convert to PNG, JPEG, WebP, etc. Resize Image Easily resize images to a specified size Image compression Reduce image file sizes within the browser Image Cropping Crop images to any size or aspect ratio Convert images to PDF Combine multiple images into a single PDF Color Code Conversion Convert between HEX, RGB, HSL, and other color formats

A collection of ready-to-use microtools tailored to your needs

On this homepage, you can view a list of all currently available tools. Each tool is designed for immediate use in your browser, requiring no registration or complex setup. We’ve compiled a collection of functions frequently used in web development, including IP address lookup, random password generation, character count, UUID generation, JSON formatting, Base64 encoding, and URL encoding.

Since we provide usage instructions, precautions, and FAQs for each tool, you can not only perform simple translations or generate content but also confirm the appropriate contexts for use. In addition to developer utilities, we will gradually add features useful for writing, website management, and troubleshooting.

Browse by category

Security & Networking

This tool helps you verify connection details and create secure passwords.

Verify IP address You can check the current source IP address and hostname. This is also useful for verifying VPN connections and access restrictions. Open tool
Password generation You can generate secure random passwords by specifying the number of characters and character types. Open tool

Useful Tools for the General Public

This tool is easy to use for everyday tasks, store information, document creation, and sharing.

Generate a QR code You can generate QR codes from URLs, text, Wi-Fi, email, phone numbers, SMS, and vCards. You can save them as PNG or SVG files. Open tool
Unit Conversion This is a free unit conversion tool that lets you instantly convert length, weight, temperature, area, volume, speed, time, and data capacity right in your browser. Input values are not sent to the server. Open tool
Percentage Calculations This is a free percentage calculator that can calculate “X% of an amount,” “X% of the total,” “X% increase or decrease,” “value after X% increase or decrease,” and “original value.” Open tool
Loan Calculator This free loan calculator allows you to calculate repayment amounts (for both principal-and-interest and principal-only repayment plans), total repayment amount, total interest, repayment completion date, and repayment schedule based on the loan amount, annual interest rate, and repayment period. It also supports comparing repayment methods and making early repayments. Open tool
Discount Calculation This free Discount Calculator allows you to calculate the discounted price, discount amount, and effective discount rate based on the list price and discount rate. It also supports consecutive discounts, quantity-based discounts, tax rates, and calculating the original price. Open tool
Age Calculation This is a free age calculator that uses your date of birth and a reference date to calculate your age in full years, as well as the number of months, days, and weeks that have passed, and the number of days until your next birthday. Open tool
Date Calculations This free date calculator calculates the difference between two dates, the total number of days, the number of weeks, and the number of weekdays, and allows you to add or subtract years, months, weeks, and days from a specified date. Open tool
Randomly generated This is a multifunctional random generator that lets you generate random numbers, random strings, random selections from lists, random colors, dice rolls, and coin flips for free right in your browser. Open tool
Image Format Conversion This free Image Converter lets you convert PNG, JPEG, WebP, and AVIF images directly in your browser. You can adjust image quality, background color, and image size, and check the file size and dimensions before and after conversion before saving. Open tool
Resize Image This free tool lets you resize PNG, JPEG, and WebP images directly in your browser by specifying width, height, aspect ratio, and scaling factor. It supports presets for social media, aspect ratio preservation, image quality adjustment, and file size comparison. Open tool
Image compression This free tool compresses JPEG, PNG, and WebP images directly in your browser, allowing you to reduce file size while checking image quality. Images are not sent to the server. Open tool
Image Cropping This is a free image cropping tool that lets you select the cropping area directly on the image and crop it to custom aspect ratios or standard ratios such as 1:1, 4:3, and 16:9. It supports rotation and flipping, as well as saving in PNG, JPEG, and WebP formats, and images are not uploaded to the server. Open tool
Convert images to PDF This free tool lets you combine multiple image formats—such as JPG, PNG, and WebP—into a single PDF directly in your browser. It supports rearranging images, selecting A4, Letter, A3, or Legal paper sizes, portrait or landscape orientation, custom margins, Fit/Fill options, and image quality adjustments. Images are not uploaded to the server. Open tool
Color Code Conversion This free Color Converter allows you to convert between HEX, RGB, RGBA, HSL, HSLA, HSV, and CMYK in real time. It supports a color picker, opacity adjustment, complementary colors, contrast ratio with black-and-white text, and a copy function. Open tool

For Developers

This is a development support tool that is useful for creating and verifying APIs, data formats, and identifiers.

Generate UUID You can generate one or more UUID v4s and copy or download them. Open tool
JSON Formatter You can format, compress, and check the syntax of JSON. This is useful for verifying API responses and configuration files. Open tool
CSV Viewer This is a free CSV Viewer that displays CSV and TSV files in a table format directly in your browser. It supports drag-and-drop, character encoding and delimiter selection, search, column sorting, and pagination. Files are processed locally on your device without being sent to the server. Open tool
JSON ⇔ CSV Converter This is a free tool that lets you convert between JSON and CSV directly in your browser. It converts JSON arrays to CSV and CSV to JSON, and supports delimiter selection, type inference, expanding nested JSON, and copying and downloading. No data is sent to the server. Open tool
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Unix Timestamp Converter You can convert between Unix timestamps, millisecond timestamps, and date-time strings. It automatically detects the user's time zone and uses it as the reference time zone when entering dates and times. Open tool

Text and Translation

This tool can be used to check text volume and convert text data.

Character count You can check the number of characters, UTF-8 bytes, and words in the text. It also supports removing HTML tags. Open tool
Base64 Encoding/Decoding You can encode text into Base64 and decode Base64 strings into UTF-8 text. Open tool
URL Encoding/Decoding You can encode characters that are difficult to handle in URLs and decode URL-encoded strings back to their original characters. Open tool
HTML Escape / Unescape This is a free online tool that lets you escape or unescape special characters in HTML. You can safely convert tags, quotation marks, and ampersands back and forth right in your browser. Open tool
Markdown Editor This is a free online editor that lets you preview your Markdown in real time as you type. It supports headings, lists, tables, code, and links, and allows you to copy HTML or save Markdown and HTML files. Open tool
Diff Checker This is a free Diff Checker that lets you compare two pieces of text in your browser and check additions, deletions, and changes on a line-by-line and character-by-character basis. Your input is not sent to the server. Open tool

It’s helpful to bookmark this page.

The homepage is designed as a tool directory so you can easily find frequently used web tools in one place. We plan to continue adding tools with similar functions, such as URL conversion, hash generation, QR code generation, and timestamp conversion.