Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Web Developer Tools in Modern Browsers
Search
Sponsored
·
Ship Features Fearlessly
Turn features on and off without deploys. Used by thousands of Ruby developers.
→
othree
January 12, 2013
Programming
12
7.1k
Web Developer Tools in Modern Browsers
othree
January 12, 2013
Tweet
Share
More Decks by othree
See All by othree
How GitHub Supports Vim License Detection, The Five Years Journey
othree
1
2.1k
WAT JavaScript Date
othree
3
2.1k
Modern HTML Email Development
othree
3
2.7k
MRT & GIT
othree
1
2.3k
YAJS.vim and Vim Syntax Highlight
othree
1
3k
Web Trends to 2015
othree
4
330
Transducer
othree
9
3.1k
HITCON 11 Photographer
othree
4
520
fetch is the new XHR
othree
6
3.6k
Other Decks in Programming
See All in Programming
Architectural Extensions
denyspoltorak
0
280
Automatic Grammar Agreementと Markdown Extended Attributes について
kishikawakatsumi
0
180
16年目のピクシブ百科事典を支える最新の技術基盤 / The Modern Tech Stack Powering Pixiv Encyclopedia in its 16th Year
ahuglajbclajep
5
1k
KIKI_MBSD Cybersecurity Challenges 2025
ikema
0
1.3k
AIフル活用時代だからこそ学んでおきたい働き方の心得
shinoyu
0
130
CSC307 Lecture 02
javiergs
PRO
1
770
メルカリのリーダビリティチームが取り組む、AI時代のスケーラブルな品質文化
cloverrose
2
510
責任感のあるCloudWatchアラームを設計しよう
akihisaikeda
3
170
Package Management Learnings from Homebrew
mikemcquaid
0
210
Fragmented Architectures
denyspoltorak
0
150
ThorVG Viewer In VS Code
nors
0
770
AI前提で考えるiOSアプリのモダナイズ設計
yuukiw00w
0
220
Featured
See All Featured
個人開発の失敗を避けるイケてる考え方 / tips for indie hackers
panda_program
122
21k
Why Mistakes Are the Best Teachers: Turning Failure into a Pathway for Growth
auna
0
51
Typedesign – Prime Four
hannesfritz
42
2.9k
The Hidden Cost of Media on the Web [PixelPalooza 2025]
tammyeverts
2
180
Why Our Code Smells
bkeepers
PRO
340
58k
How To Speak Unicorn (iThemes Webinar)
marktimemedia
1
380
CSS Pre-Processors: Stylus, Less & Sass
bermonpainter
359
30k
Abbi's Birthday
coloredviolet
1
4.7k
jQuery: Nuts, Bolts and Bling
dougneiner
65
8.4k
The Anti-SEO Checklist Checklist. Pubcon Cyber Week
ryanjones
0
55
Done Done
chrislema
186
16k
Taking LLMs out of the black box: A practical guide to human-in-the-loop distillation
inesmontani
PRO
3
2k
Transcript
Web Developer Tools in Modern Browsers othree @ WebConf
Past
None
None
How Developers Debugging
None
None
Problems • Only script debugging • Error messages are not
useful
The Most Powerful Debugging Function
alert
Present
Text
None
None
None
None
None
Rich Internet Applications
None
2004
None
Take Back the Web
2007
None
Firebug • First modern browser developer tool • by Joe
Hewitt
None
None
Modern Dev Tool Functions • Inspect DOM Tree • Style
Lookup • Useful Debug Message • Monitor Network • Performance Tuning • ...
Modern Dev Tools • Firebug for Firefox • Developer Tool
for Chrome/Safari • Dragonfly for Opera
None
None
None
Demo Time
One More Thing
Firebug Lite
Firebug Lite • Browser independent • Supports all major browser
including IE
Take a Look
Further Reading
Things I didn’t know about the WebKit inspector
Wait, DevTools could do THAT?
Improving Web App Performance With the Chrome DevTools Timeline and
Profiles
Using the Heap Profiler in Chrome Dev Tools
Secrets of the Chrome Developer Tools
My Workflow: Never having to leave DevTools
Documents • Console API • Command Line API • Chrome
Developer Tools • Opera Dragonfly Documentation
Questions?
me • othree • Twitter, Plurk, flickr, Github, PTT •
Blog: https://blog.othree.net • F2E at HTC
Thanks