Or file me tickets

A curated list Of Free Web-based Tools For Developers. GitHub: https://github.com/DennyZhang/developer-free-saas

Only accept free and web-based tools. (No commercial or paid SaaS services).

Welcome PRs or Tickets.

Table of Contents

• Testing
  • GUI simulation test
• Programming
  • Analysis Java gc.log
  • Test Groovy scripts
  • Explain shell scripts
• Network
  • Check IP address information
  • Find my public IP address
  • Network Subnet Calculator
• Frontend
  • Beautify html/css code
  • Validate Your HTML
  • Minify CSS code
  • Get color RGB
  • html escape tool
  • Find icons
• Sharing
  • transfer.sh: Easy file sharing from the command line
• Security
  • Random password generator
  • Online UUID Generator
• Webiste
  • Google pagespeed
  • Test landing page from all over the world
  • GTmetrix: Analyze your site’s speed
  • WebPage Test
  • Chinese Firewall Test
  • Whether website support http2 protocal
• SSL
  • Deep analysis of the configuration of any SSL web server
  • When your certificate will expire
• More Thinkings

Testing

GUI simulation test

• URL https://www.browserling.com

Programming

Analysis Java gc.log

• URL: http://gceasy.io

Test Groovy scripts

• URL: https://groovyconsole.appspot.com

Explain shell scripts

• URL: https://www.explainshell.com

Network

Check IP address information

• URL: https://www.tcpiputils.com/browse/ip-address

Find my public IP address

• URL: http://ipecho.net/plain

Network Subnet Calculator

• URL: https://mxtoolbox.com/SubnetCalculator.aspx

Frontend

Beautify html/css code

• URL: https://www.cleancss.com/html-beautify/

Validate Your HTML

• URL: https://www.freeformatter.com/html-validator.html

Minify CSS code

• URL: http://css.github.io/csso/csso.html

Get color RGB

• URL: http://www.colorhexa.com/888888

html escape tool

• URL: http://www.htmlescape.net/htmlescape_tool.html

Find icons

• URL: https://www.iconfinder.com

Sharing

transfer.sh: Easy file sharing from the command line

• URL: https://transfer.sh

Security

Random password generator

• URL: http://passwordsgenerator.net

Online UUID Generator

• URL: https://www.uuidgenerator.net

Webiste

Google pagespeed

• URL: https://developers.google.com/speed/pagespeed/insights/

Test landing page from all over the world

• URL: https://www.dotcom-tools.com/website-speed-test.aspx

GTmetrix: Analyze your site’s speed

• URL: https://gtmetrix.com

WebPage Test

• URL: https://www.webpagetest.org

Chinese Firewall Test

• URL: http://www.viewdns.info/chinesefirewall/

Whether website support http2 protocal

• URL: https://http2.pro/check

SSL

Deep analysis of the configuration of any SSL web server

• URL: https://www.ssllabs.com/ssltest/index.html

When your certificate will expire

• URL: https://www.sslshopper.com/ssl-checker.html

More Thinkings

• If we can have docker images to host the solution by our own, it would be even better.
• More input? Contact me via LinkedIn or Blog.

Code is licensed under MIT License.