https://w3lessons.info/2017/10/04/20-free-online-web-developer-tools/
1 Pingdom Website Speed Test
2 Browser Shots
3 Postman - make your API development faster & easier
4 Responsive Website Design Tester
5 Google Fonts CDN
6 .Htaccess Generator Online
7 Difference Checker
8 SubLime Text Editor
9 Embed Responsively
10 JSON Viewer
11 JPEGMINI - Compress JPG Files Online
12 Tiny PNG - Compress PNG images
13 Picture Resize Online
14 CSS Minifier
15 Javascript Minifier
16 CSS Media Query Generator
17 Awesome Screenshot
18 Dummy Image Generator
19 Crontab Generator
20 Creately Diagramming
1 Pingdom Website Speed Test
2 Browser Shots
3 Postman - make your API development faster & easier
4 Responsive Website Design Tester
5 Google Fonts CDN
6 .Htaccess Generator Online
7 Difference Checker
8 SubLime Text Editor
9 Embed Responsively
10 JSON Viewer
11 JPEGMINI - Compress JPG Files Online
12 Tiny PNG - Compress PNG images
13 Picture Resize Online
14 CSS Minifier
15 Javascript Minifier
16 CSS Media Query Generator
17 Awesome Screenshot
18 Dummy Image Generator
19 Crontab Generator
20 Creately Diagramming