Compress JS and CSS (www.piliapp.com)
An online JavaScript and CSS minifier. Compress JS and CSS code by removing whitespace, comments, and redundant characters to reduce file sizes for faster web pages.
Connection Speed Test (toolpods.io)
Measure your internet connection speed including download, upload, and latency.
Conversation Memo Web (talk.onl.jp)
A web app to record and manage conversation content in real time. Organizes and saves interview and meeting notes by speaker for easy reference.
Cost-effectiveness Calculator (lazesoftware.com)
Compares the cost-effectiveness of multiple products by calculating unit price from name, quantity, and price inputs. Automatically determines the most economical option and displays results in a table.
Countdown Timer (www.piliapp.com)
An online countdown timer with customizable hours, minutes, and seconds. Set the duration and get an alert when time is up. Suitable for cooking, studying, and presentations.
Countdown Timer (saruwakakun.com)
A web-based countdown timer that lets you set a duration or target date. Supports title and color customization, and URL sharing. No sign-up required.
Counter (www.piliapp.com)
An online tally counter for counting things with a click. Increment, decrement, and reset the count easily. Useful for counting participants, inventory, or repetitions.
Counter Web (count.onl.jp)
A simple web counter that supports count-up and count-down with just a button press. Useful for inventory tracking, headcounts, vote tallying, and many other purposes.
Credit Card Validator (web-toolbox.dev)
Free tool for validating credit card numbers using the Luhn algorithm. Also supports format checking and card brand detection, useful for testing during development.
Cron Expression Generator/Parser (toolpods.io)
Create and validate cron expressions using a visual GUI. Confirm the schedule while generating the cron syntax.
CSP Parser (web-toolbox.dev)
Free tool for parsing Content Security Policy (CSP) headers and visualizing each directive. Useful for quickly checking and debugging CSP configurations.
CSS Background Pattern Generator (web-toolbox.dev)
Free tool for generating background patterns using CSS only. Visually configure dots, stripes, grids, and more, then copy the generated CSS code.
