Free Online Tools for Everyone
35 powerful online tools for developers, designers, writers, and marketers. Fast, privacy-focused, and 100% free. No sign-up required.
Tools organized by category
Browse through 10 categories to find exactly what you need
Developer Tools
25Format, validate, encode, decode, and test code with these 25 developer-focused tools. From JSON formatters to regex testers — everything a programmer needs.
Date & Time Tools
1010 date and time calculators for scheduling, planning, and time management. Calculate age, date differences, time zones, business days, and more.
Three clicks. Zero hassle.
No tutorials, no learning curve. Just open, use, and done.
Pick a Tool
Browse our collection of developer and date-time tools. Find exactly what you need from the category grid or use the search bar.
Use It Instantly
No sign-up, no uploads, no waiting. Every tool loads right in your browser and processes everything on your device.
Get Results
See your formatted JSON, decoded token, calculated age, or converted timezone instantly. Copy, download, or share the result.
Built for developers
25 essential dev utilities — format, encode, decode, test, and generate right in your browser
JSON Formatter
Beautify & validate JSON
JSON Validator
Check if JSON is valid
JSON Minifier
Compress JSON to save space
JSON Pretty Printer
Make JSON human-readable
JSON to CSV
Convert JSON data to spreadsheets
CSV to JSON
Convert spreadsheets to JSON
XML Formatter
Beautify XML documents
XML to JSON
Convert XML data to JSON
YAML to JSON
Convert YAML configs to JSON
Time tools that click
10 smart calculators for age, time zones, business days, countdowns, and calendars
Age Calculator
Calculate exact age in years, months, days
Date Difference Calculator
Find days between two dates
Time Zone Converter
Convert time across time zones
Business Days Calculator
Calculate working days & deadlines
Unix Timestamp Converter
Convert Unix timestamps to readable dates
Countdown Generator
Create countdown timers
Calendar Generator
Generate printable calendars
Week Number Calculator
Find week numbers for dates
Leap Year Checker
Check if a year is a leap year
Built different. Built better.
No fluff, no gimmicks. Just fast, private, free tools that respect you and your data.
100% Private
All tools run entirely in your browser. Your data never touches a server — we can't see it, store it, or share it.
Blazing Fast
No server round-trips, no waiting. Every tool processes instantly on your device for immediate results.
No Sign-Up
No accounts, no emails, no passwords. Just open any tool and start using it immediately — zero friction.
Completely Free
Every tool is 100% free forever. No premium tiers, no hidden charges, no credit card needed. Just tools that work.
Loved by developers
Here's what people are saying about CodeThisWeb Tools.
“Finally a tools site that doesn't ask for my email before letting me format JSON. Everything just works, and it's fast.”
“The age calculator and countdown generator saved me hours of manual calculation for our project timeline. Incredibly useful.”
“I use the JWT decoder and Base64 tools daily. Having them all in one place with no server uploads is a massive privacy win.”
Built for privacy. Run entirely in your browser.
Every tool processes data on your device — we never see, store, or share anything you work with. No servers, no logs, no catch.
No Data Collection
We don't track what you paste, encode, or calculate. Your data stays on your machine, period.
Blazing Fast Performance
No network latency. Tools respond instantly because everything runs in your browser with zero server round-trips.
Open & Honest
No premium upsells, no hidden limits, no data mining. What you see is what you get — always free.
Every tool at your fingertips
A complete collection of 35 free tools — search, find, and use what you need
Developer Tools
25
Developer Tools
25Format, validate, encode, decode, and test code with these 25 developer-focused tools. From JSON formatters to regex testers — everything a programmer needs.
JSON Formatter
Beautify & validate JSON
JSON Validator
Check if JSON is valid
JSON Minifier
Compress JSON to save space
JSON Pretty Printer
Make JSON human-readable
JSON to CSV
Convert JSON data to spreadsheets
CSV to JSON
Convert spreadsheets to JSON
XML Formatter
Beautify XML documents
XML to JSON
Convert XML data to JSON
YAML to JSON
Convert YAML configs to JSON
SQL Formatter
Beautify your SQL queries
HTML Formatter
Prettify HTML markup
CSS Formatter
Organize your stylesheets
JavaScript Formatter
Prettify JS/TS code
Base64 Encode
Encode text or files to Base64
Base64 Decode
Decode Base64 back to text
JWT Decoder
Inspect JWT tokens
JWT Generator
Create JWT tokens
URL Encoder
Encode URLs safely
URL Decoder
Decode percent-encoded URLs
UUID Generator
Generate unique identifiers
Hash Generator
MD5, SHA-1, SHA-256, SHA-512
Regex Tester
Test & debug regular expressions
Unix Timestamp Converter
Convert between dates & timestamps
Cron Expression Generator
Create & explain cron schedules
API Request Tester
Test REST & GraphQL APIs
Date & Time Tools
10
Date & Time Tools
1010 date and time calculators for scheduling, planning, and time management. Calculate age, date differences, time zones, business days, and more.
Age Calculator
Calculate exact age in years, months, days
Date Difference Calculator
Find days between two dates
Time Zone Converter
Convert time across time zones
Business Days Calculator
Calculate working days & deadlines
Unix Timestamp Converter
Convert Unix timestamps to readable dates
Countdown Generator
Create countdown timers
Calendar Generator
Generate printable calendars
Week Number Calculator
Find week numbers for dates
Leap Year Checker
Check if a year is a leap year
Working Hours Calculator
Calculate work hours & overtime
Frequently asked questions
What is CodeThisWeb Tools?
CodeThisWeb Tools is a collection of free online utilities for developers, designers, writers, marketers, and content creators. All tools run entirely in your browser — nothing is sent to any server.
Are these tools really free?
Yes, 100% free. No hidden charges, no premium tiers, no credit card required. All tools are completely free to use with no limits or restrictions.
Do I need to create an account?
No sign-up or account is needed for any of the free tools. Just open and use.
How does CodeThisWeb protect my privacy?
Privacy is our priority. All tools run client-side in your browser — your files, text, and data never leave your device. We don't store, log, or share any of your content.
Which tools are available right now?
We're actively building new tools. Currently, you can browse all available tools and see what's live. New tools are being added regularly. Follow us for updates.
Can I request a new tool?
Absolutely! We're always looking for ideas. Reach out through our contact page or social media channels and let us know what tool you'd like to see.
Ready to use 35 free tools?
No sign-up, no limits, no nonsense. Just fast, private tools that work right in your browser.