Besides gaining reputation with your questions and answers, you receive badges for being especially helpful. Badges appear on your profile page, flair, and your posts.

Question Badges

First bounty you manually award on another person's question
1 awarded
First bounty you manually award on your own question
8 awarded
Ask a good question on 5 separate days, and maintain a positive question record
47 awarded
Ask a good question on 30 separate days, and maintain a positive question record
3 awarded
Ask a good question on 100 separate days, and maintain a positive question record
Question favorited by 25 users
32 awarded
Question favorited by 100 users
2 awarded
First bounty you offer on another person's question
7 awarded
Question score of 10 or more
247 awarded
Question score of 25 or more
76 awarded
Question score of 100 or more
12 awarded
Question with 1,000 views
132 awarded
Question with 2,500 views
54 awarded
Question with 10,000 views
14 awarded
First bounty you offer on your own question
12 awarded
Ask a question and accept an answer
355 awarded
First question with score of 1 or more
726 awarded
Asked a question with zero score, no answers, no comments, and low views for a week
131 awarded

Answer Badges

First to answer and accepted with score of 10 or more
10 awarded
Edit and answer 1 question (both actions within 12 hours, answer score > 0)
15 awarded
Edit and answer 50 questions (both actions within 12 hours, answer score > 0)
1 awarded
Edit and answer 500 questions (both actions within 12 hours, answer score > 0)
Provide non-wiki answers of 15 total score in 20 of top 40 tags
Accepted answer and score of 40 or more
Answer score of 10 or more
51 awarded
Answer score of 25 or more
6 awarded
Answer score of 100 or more
1 awarded
Highest scoring answer that outscored an accepted answer with score of more than 10 by more than 2x
Provide an answer of +20 score to a question of -5 score
Answer more than 30 days after a question was asked as first answer scoring 2 or more
59 awarded
Answer a question more than 60 days later with score of 5 or more
45 awarded
Answer your own question with score of 3 or more
31 awarded
Answer a question with score of 1 or more
428 awarded
Zero score accepted answers: more than 5 and 20% of total
1 awarded
Zero score accepted answers: more than 10 and 25% of total

Participation Badges

Complete "About Me" section of user profile
10.9k awarded
Visit an election during any phase of an active election and have enough reputation to cast a vote
Vote for a candidate in the final phase of an election
Leave 10 comments
131 awarded
Leave 10 comments with score of 5 or more
1 awarded
Visit the site each day for 30 consecutive days. (Days are counted in UTC.)
133 awarded
Visit the site each day for 100 consecutive days. (Days are counted in UTC.)
50 awarded
Earn at least 200 reputation (the daily maximum) in a single day
7 awarded
Earn 200 daily reputation 50 times
Earn 200 daily reputation 150 times
Followed the Area 51 proposal for this site before it entered the commitment phase
One post with score of 2 on meta
10 posts with score of 2 on meta
Post 10 messages, with 1 or more starred, in chat
8 awarded
Post 10 messages in chat starred by 10 different users
Active member for a year, earning at least 200 reputation
601 awarded

Tag Badges

You must have a total score of 100 in at least 20 non-community wiki answers to achieve this badge.
10 awarded
You must have a total score of 400 in at least 80 non-community wiki answers to achieve this badge.
You must have a total score of 1000 in at least 200 non-community wiki answers to achieve this badge.

Moderation Badges

First flagged post
193 awarded
Raise 80 helpful flags
1 awarded
Raise 500 helpful flags
Vote 300 or more times
7 awarded
First rollback
15 awarded
Served as a pro-tem moderator for at least 1 year or through site graduation
2 awarded
Served as an elected moderator for at least 1 year
First down vote
123 awarded
Complete at least one review task. This badge is awarded once per review type
144 awarded
Complete at least 250 review tasks. This badge is awarded once per review type
Complete at least 1,000 review tasks. This badge is awarded once per review type
Delete own post with score of 3 or higher
11 awarded
First edit
561 awarded
Edit 80 posts
3 awarded
Edit 500 posts (excluding own or deleted posts and tag edits)
Vote on 600 questions and 25% or more of total votes are on questions
Edit first post that was inactive for 6 months
59 awarded
Edit 100 posts that were inactive for 6 months
First retag
67 awarded
Delete own post with score of -3 or lower
2 awarded
Approve or reject 100 suggested edits
2 awarded
Up vote 100 answers on questions where an answer of yours has a positive score
Use 30 votes in a day
12 awarded
First up vote
3k awarded
First approved tag synonym
4 awarded
First tag wiki edit
32 awarded
Edit 50 tag wikis
Create a tag used by 50 questions
5 awarded
Use the maximum 40 votes in a day
8 awarded

Other Badges

Visited every section of the FAQ (retired)
157 awarded
Share a link to a question later visited by 25 unique IP addresses
35 awarded
Share a link to a question later visited by 300 unique IP addresses
1 awarded
Share a link to a question later visited by 1000 unique IP addresses
Participated in the private API beta; +2000 rep bonus
44 awarded
Actively participated in the private API beta; +4000 rep bonus
15 awarded