Repository for the book "Crafting Interpreters"
- language
- parser
- bytecode
- java
HTML
10,967 ★
1,283 forks
100 issues
today
Profile tree
Data from GitHub API- Contributions: 651. Past 12 months.
- Followers: 11,082. People who follow you.
- Total stars: 23,639. Across all repos.
- Following: 144. People you follow.
- Public repos: 46. Owned, non-fork.
A living snapshot
Every leaf is a headline number from Bob Nystrom’s public GitHub. The canopy fills out as the work grows - sway and all.
- 651 Contributions Past 12 months
- 11K Followers People who follow you
- 24K Total stars Across all repos
- 144 Following People you follow
- 46 Public repos Owned, non-fork
Data from GitHub API · refreshed in real time
651
Contributions
Past 12 months
0
Current streak
No active streak
13
Longest streak
Jan 12, 2026 – Jan 24, 2026
Less
More
- Dart 32.7%
- HTML 29.6%
- C# 9.0%
- C 8.9%
- Python 8.6%
- Java 4.5%
- Other 6.6%
- Mobile 100
- Backend 94
- Frontend 67
- DevOps 33
- Embedded 33
- Data 28
- Game Dev 6
- AI 0
- Security 0
Longest streak
13d
Jan 2026
Favourite coding day
Friday
108 contributions
Most active year
2021
885 contributions
Signature language
Dart
33% of tracked code
Flagship repository
craftinginterpreters
10,967 stars
On GitHub since
2009
17 years and counting
Bob Nystrom is a developer on GitHub whose public work is written mostly in Dart, which accounts for roughly 33% of their committed code, alongside HTML and C#. Their account holds 46 public repositories, collecting 23,639 stars in total, led by craftinginterpreters at 10,967. In the trailing year the account logged 651 contributions, including a longest run of 13 consecutive active days. Bob Nystrom has been on GitHub since 2009 and is followed by 11,082 developers.
This overview is generated from Bob Nystrom’s public GitHub activity at the time of the last refresh. Figures cover public repositories and the trailing twelve months of contributions.
Source repo for the book
- book
- markdown
- game-development
- c-plus-plus
HTML
4,518 ★
514 forks
91 issues
3d ago
Vigil, the eternal morally vigilant programming language
Python
3,035 ★
63 forks
24 issues
12d ago
A web-based roguelike written in Dart.
Dart
2,164 ★
213 forks
16 issues
4d ago
A simple mark-sweep garbage collector in C
C
757 ★
179 forks
10d ago
The Magpie programming language
Python
376 ★
37 forks
10 issues
1mo ago
A simple demo app for Pratt parsing
Java
351 ★
41 forks
2 issues
1mo ago
NOASSERTION
GitHub
A complete interpreter for a dialect of BASIC in one Java sourcefile
Java
154 ★
37 forks
5mo ago
Animated demo code for a random dungeon generator
Dart
147 ★
17 forks
6d ago
NOASSERTION
GitHub
Source repo for the book
HTML
4,518 ★
514 forks
Repository for the book "Crafting Interpreters"
HTML
10,967 ★
1,283 forks
The Wren Programming Language. Wren is a small, fast, class-based concurrent scripting language.
Wren
8,103 ★
627 forks
Vigil, the eternal morally vigilant programming language
Python
3,035 ★
63 forks
A web-based roguelike written in Dart.
Dart
2,164 ★
213 forks
The Dart SDK, including the VM, JS and Wasm compilers, analysis, core libraries, and more.
Dart
11,242 ★
1,850 forks
-
craftinginterpreters 10,967 ★
Repository for the book "Crafting Interpreters"
-
game-programming-patterns 4,518 ★
Source repo for the book
-
vigil 3,035 ★
Vigil, the eternal morally vigilant programming language
-
hauberk 2,164 ★
A web-based roguelike written in Dart.
-
mark-sweep 757 ★
A simple mark-sweep garbage collector in C
-
magpie 376 ★
The Magpie programming language
Technology breakdown
Derived from repository languages and topics - horizontal bars, never a pie.
Languages
-
Dart 33%
-
HTML 30%
-
C# 9%
-
C 9%
-
Python 9%
-
Java 5%
Tools
-
Markdown 100%
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46
Public repos
Owned, non-fork
24K
Total stars
Across all repos
651
Contributions
Past 12 months
55
Pull requests
Opened this year
56
Public gists
Snippets shared
17
y
Account age
Since 2009
90
%
Profile score
Completeness
Repository explorer
→
| Name | Language | Stars | Forks | Size | Updated |
|---|
No repositories match those filters.
Coding statistics
→
Contribution patterns
→
By year
-
2026
282
-
2025
660
-
2024
737
-
2023
829
-
2022
653
-
2021
885
By day of week
-
Sun
34
-
Mon
99
-
Tue
63
-
Wed
95
-
Thu
72
-
Fri
108
-
Sat
42
Best coding day: Fri
By month (last 12)
-
Sep
62
-
Oct
73
-
Nov
52
-
Dec
34
-
Jan
70
-
Feb
42
-
Mar
2
-
Apr
39
-
May
41
-
Jun
47
-
Jul
41
-
Aug
0
GitHub journey
→
-
January 2009
Joined GitHub
Created the @munificent account.
-
January 2009
Created first repository
Published magpie, the oldest repository still on the account.
-
January 2009
First starred repository
magpie is the earliest-created repository to have earned stars.
-
October 2012
Reached 10 repositories
settings was the 10th public repository created.
-
June 2021
Most productive year: 2021
885 contributions recorded in 2021, more than any other year on record.
-
November 2024
Latest repository
temp-declaring-constructors is the most recently created repository.
Developer evolution
Your GitHub career, year by year.
→
2010
Shifted from Python to Java.
C++
Go
Java
- Repos this year
- 4
- Total repos
- 5
- Stars, as of today
- 850
2011
Went deeper into Java.
HTML
Java
JavaScript
- Repos this year
- 4
- Total repos
- 9
- Stars, as of today
- 1.4k
2012
Shifted from Java to C#.
C#
Shell
- Repos this year
- 3
- Total repos
- 12
- Stars, as of today
- 1.4k
2013
Shifted from C# to C.
C
HTML
Python
- Repos this year
- 3
- Total repos
- 15
- Stars, as of today
- 9.7k
2015
Went deeper into Dart.
Dart
HTML
- Repos this year
- 6
- Total repos
- 27
- Stars, as of today
- 12k
2016
Shifted from Dart to C#.
C#
CoffeeScript
Dart
- Repos this year
- 5
- Total repos
- 32
- Stars, as of today
- 13k
2017
Shifted from C# to HTML.
HTML
- Repos this year
- 1
- Total repos
- 33
- Stars, as of today
- 23k
2018
Shifted from HTML to Dart.
Dart
- Repos this year
- 1
- Total repos
- 34
- Stars, as of today
- 24k
2021
Shifted from Dart to C#.
C#
Dart
- Repos this year
- 2
- Total repos
- 36
- Stars, as of today
- 24k
- Contributions
- 885
2023
Shifted from C# to Dart.
Dart
- Repos this year
- 2
- Total repos
- 38
- Stars, as of today
- 24k
- Contributions
- 829
2024
Went deeper into Dart.
Dart
- Repos this year
- 2
- Total repos
- 40
- Stars, as of today
- 24k
- Contributions
- 737
Built from munificent’s public, non-fork repositories. Star totals reflect current counts, not historical snapshots.
Achievements
5 / 9 unlocked
Explorer
Created repositories in 8 or more languages
Builder
More than 50 public repositories
Open Source Enthusiast
100+ stars received across all repositories
Consistent
A 100-day-or-longer contribution streak
Documentation Hero
5 or more repositories with a detailed description
Popular
500 or more followers
Prolific Committer
1,000 or more commits in the past 12 months
Long Timer
5 or more years on GitHub
Star Collector
Starred 100 or more repositories
Open source activity
23,639
Stars received
544
Repositories starred
2,553
Forks received
102
Issues opened
Past 12 months
55
Pull requests opened
Past 12 months
46
Reviews given
Past 12 months
56
Public gists
Language evolution
The primary languages of repositories created each year.
2009
- Python
2010
- C++
- Go
- Java
2011
- HTML
- Java
- JavaScript
2012
- C#
- Shell
2013
- C
- HTML
- Python
2014
- C
- Dart
2015
- Dart
- HTML
2016
- C#
- CoffeeScript
- Dart
2017
- HTML
2018
- Dart
2021
- C#
- Dart
2023
- Dart
2024
- Dart
Repository growth
Repositories created per year, and the running total.
Created that year
Cumulative total
Language tree
Built automatically from repository languages and topics.
Programming Languages →
- Dart
- HTML
- C#
- C
- Python
- Java
Tooling →
- Markdown 2