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logisim-evolution

2 indexed repositories · View on GitHub

logisim-evolution
Digital logic design tool and simulator

Java · 7600 stars
GECKO5Education
Openhardware educational platform based on the ideas of the ulx3s and Gecko4Education

16 stars

Beginner friendly Everything

Open All

NMOS transistor logic behavior is incorrect in simulation Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

logisim-evolution/logisim-evolution#2988 · 1 comment · Opened Sep 18, 2026
Update our checkstyle version. Open

logisim-evolution/logisim-evolution#2983 · 1 assignee · Opened Sep 13, 2026
Add 74148 priority encoder to TTL library Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

logisim-evolution/logisim-evolution#2981 · 1 comment · Opened Sep 12, 2026
[Feature] Migrate component copy/paste to OS system clipboard Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

logisim-evolution/logisim-evolution#2978 · 2 comments · Opened Sep 10, 2026
Tie our dependencies to a commit hash instead of a movable version tag Open

good first issue help wanted

logisim-evolution/logisim-evolution#2969 · 1 comment · 1 assignee · Opened Sep 7, 2026
Add a command line option to load a JAR library Open

all OS D'n'D required good first issue help wanted triage

Difficulty 4/5 3-5 days Newbie friendliness 35/100

logisim-evolution/logisim-evolution#2966 · 1 comment · Opened Sep 7, 2026
VHDL in Logisim-evolution Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

logisim-evolution/logisim-evolution#2963 · 3 comments · Opened Sep 6, 2026
GitHub Action to do post-merge cleanup Open

D'n'D required enhancement

logisim-evolution/logisim-evolution#2957 · 5 comments · 1 assignee · Opened Sep 5, 2026
change request: [HDL] Random Generator Open

bug investigating

Difficulty 3/5 1-2 days Newbie friendliness 52/100

logisim-evolution/logisim-evolution#2951 · 11 comments · Opened Sep 4, 2026
Logisim has textfields. You can use latex-style math to have logic equations in a tikz-export. Would it not be nice to render it the same way in logisim Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

logisim-evolution/logisim-evolution#2942 · Opened Sep 1, 2026
TTY: allow configuring the display font consistently Open

enhancement help wanted pri -1

Difficulty 4/5 3-5 days Newbie friendliness 55/100

logisim-evolution/logisim-evolution#2878 · 1 comment · Opened Aug 20, 2026
Consider requiring circuitChanged actions be generated by the gui thread. Open

all OS bug help wanted investigating pri std

Difficulty 4/5 3-5 days Newbie friendliness 35/100

logisim-evolution/logisim-evolution#2875 · 2 comments · Opened Aug 19, 2026
macOS app fails Gatekeeper; Homebrew cask deprecated and scheduled for disablement Open

D'n'D required enhancement help wanted macOS

Difficulty 4/5 3-5 days Newbie friendliness 45/100

logisim-evolution/logisim-evolution#2699 · 1 comment · Opened Jun 25, 2026
Minor issues with the Preferences dialogue Open

enhancement good first issue help wanted pri -1

logisim-evolution/logisim-evolution#2680 · 2 comments · 1 assignee · Opened Jun 18, 2026
Text labels on canvas don't adapt to dark/light theme switch Open

enhancement help wanted pri -1

Difficulty 5/5 Over a week Newbie friendliness 35/100

logisim-evolution/logisim-evolution#2661 · 8 comments · Opened Jun 9, 2026
Overcome the 7bit limit of Combinational analysis Open

enhancement help wanted pri std

logisim-evolution/logisim-evolution#2525 · 2 comments · 1 assignee · Opened Mar 15, 2026
Ability to buffer the output of the RGB Video component Open

enhancement help wanted pri -1

Difficulty 4/5 3-5 days Newbie friendliness 48/100

logisim-evolution/logisim-evolution#2523 · 3 comments · Opened Mar 13, 2026
Possible improvements to TestVector. Open

logisim-evolution/logisim-evolution#2479 · 3 comments · 1 assignee · Opened Feb 6, 2026
Automatic import of logisim libraries instruction is outdated Open

documentation good first issue help wanted

Difficulty 1/5 1-3 hours Newbie friendliness 72/100

logisim-evolution/logisim-evolution#2368 · 3 comments · Opened Oct 20, 2025
No way to save Timing Diagram data Open

documentation enhancement help wanted pri std

logisim-evolution/logisim-evolution#2348 · 7 comments · 1 assignee · Opened Sep 20, 2025
Feature Request: VGA RGB Screen Component with Parallel Pixel Support Open

enhancement help wanted pri -1

Difficulty 5/5 Over a week Newbie friendliness 25/100

logisim-evolution/logisim-evolution#2300 · 2 comments · Opened Aug 4, 2025
In the README, link to Gecko4Eudacation is not publicly reachable Open

documentation

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

logisim-evolution/GECKO5Education#2 · 1 comment · Opened Jun 29, 2025
[Feature suggestion] Providing the LPF constraints file Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

logisim-evolution/GECKO5Education#1 · 12 comments · Opened Jun 11, 2025
Custom wire colors / multi-wire selecting Open

enhancement help wanted pri -1 triage

Difficulty 5/5 Over a week Newbie friendliness 30/100

logisim-evolution/logisim-evolution#1994 · 3 comments · 1 reaction · Opened Apr 24, 2024
AppImage Open

enhancement good first issue help wanted linux pri -1

Difficulty 4/5 3-5 days Newbie friendliness 45/100

logisim-evolution/logisim-evolution#1970 · 5 comments · 2 reactions · Opened Feb 26, 2024
Provide example circuits Open

documentation help wanted

Difficulty 4/5 3-5 days Newbie friendliness 35/100

logisim-evolution/logisim-evolution#1909 · 1 comment · Opened Nov 19, 2023
Feature Request - TinyFPGA BX synthesis Open

enhancement good first issue help wanted pri std

Difficulty 5/5 Over a week Newbie friendliness 35/100

logisim-evolution/logisim-evolution#1902 · 3 comments · Opened Oct 31, 2023
Clarify whether LSe is licensed under GPL-3.0-Only or GPL-3.0-Or-Later Open

D'n'D required pri -1 question

logisim-evolution/logisim-evolution#1891 · 2 comments · 1 assignee · Opened Oct 12, 2023
Move documentation to seperate repo Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

logisim-evolution/logisim-evolution#1862 · Opened Sep 11, 2023
Circuit ROM Open

enhancement help wanted pri -1

Difficulty 4/5 3-5 days Newbie friendliness 35/100

logisim-evolution/logisim-evolution#1859 · Opened Sep 10, 2023
Delay component Open

enhancement help wanted triage

Difficulty 5/5 Over a week Newbie friendliness 45/100

logisim-evolution/logisim-evolution#1840 · 26 comments · 2 reactions · Opened Aug 31, 2023
Please include a machine code inserter for inserting RISC-V machine codes Open

enhancement help wanted

Difficulty 5/5 Over a week Newbie friendliness 35/100

logisim-evolution/logisim-evolution#1834 · 3 comments · Opened Aug 24, 2023
LED matrix alpha channel not working Open

enhancement triage

Difficulty 3/5 1-2 days Newbie friendliness 35/100

logisim-evolution/logisim-evolution#1762 · 1 comment · Opened Jun 16, 2023
Inclusion of AD and DA converters Open

enhancement help wanted pri -1

Difficulty 5/5 Over a week Newbie friendliness 30/100

logisim-evolution/logisim-evolution#1750 · 4 comments · Opened May 16, 2023
random delay option results in broken negating-gate that outputs 0 for 0 on input Open

bug help wanted pri -1

Difficulty 4/5 3-5 days Newbie friendliness 48/100

logisim-evolution/logisim-evolution#1738 · 5 comments · Opened Apr 28, 2023
GUI freezes for longer durations when switching between sub-circuits in large Logisim circuit designs Open

all OS enhancement help wanted pri -1

Difficulty 4/5 3-5 days Newbie friendliness 38/100

logisim-evolution/logisim-evolution#1735 · 2 comments · Opened Apr 26, 2023
RGB LED Matrix Open

enhancement pri -1

logisim-evolution/logisim-evolution#1683 · 1 assignee · Opened Mar 6, 2023
Module to interconnect with other applications Open

enhancement help wanted pri -1

Difficulty 5/5 Over a week Newbie friendliness 20/100

logisim-evolution/logisim-evolution#1669 · 2 comments · 1 reaction · Opened Feb 14, 2023
No icon to launch logisim-evolution on snap version Open

enhancement good first issue help wanted linux

Difficulty 3/5 1-2 days Newbie friendliness 35/100

logisim-evolution/logisim-evolution#1662 · 3 comments · Opened Feb 6, 2023
I am not able to export simulation as text file. Open

documentation help wanted investigating

Difficulty 4/5 3-5 days Newbie friendliness 55/100

logisim-evolution/logisim-evolution#1655 · 5 comments · Opened Jan 28, 2023
looking for cooperate on verilog converter Open

documentation enhancement help wanted pri -1

Difficulty 5/5 Over a week Newbie friendliness 20/100

logisim-evolution/logisim-evolution#1616 · 8 comments · Opened Dec 31, 2022
Wire outputting a value of E instead of 1 Open

documentation enhancement investigating

Difficulty 4/5 3-5 days Newbie friendliness 35/100

logisim-evolution/logisim-evolution#1594 · 5 comments · Opened Nov 29, 2022
Drop support for color alpha channel or make complementary color computation account for alpha channel as well Open

pri -1

logisim-evolution/logisim-evolution#1582 · 1 assignee · Opened Nov 7, 2022
Using a Shift-registers output invalid Verilog Open

all OS bug pri std

logisim-evolution/logisim-evolution#1577 · 5 comments · 1 assignee · Opened Nov 4, 2022
Command-line verification cleanup Open

Difficulty 5/5 Over a week Newbie friendliness 22/100

logisim-evolution/logisim-evolution#1546 · 17 comments · Opened Sep 25, 2022
Reference Update list for 3.8.0 release Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

logisim-evolution/logisim-evolution#1534 · Opened Aug 28, 2022
Provide invert feature for component inputs Open

enhancement help wanted

Difficulty 5/5 Over a week Newbie friendliness 38/100

logisim-evolution/logisim-evolution#1510 · 10 comments · Opened Aug 6, 2022
remove the Assembler's case sensitivity (plus some notes on the SoC stuff) Open

enhancement pri -1 triage

logisim-evolution/logisim-evolution#1485 · 1 comment · 1 assignee · Opened Jul 19, 2022
No SEL pins for ROM and RAM Open

enhancement pri -1 triage

Difficulty 5/5 Over a week Newbie friendliness 35/100

logisim-evolution/logisim-evolution#1478 · 2 comments · Opened Jul 16, 2022
Request for adding iCore fpga by Gingko. Open

help wanted pri -1

Difficulty 5/5 Over a week Newbie friendliness 15/100

logisim-evolution/logisim-evolution#1454 · 4 comments · Opened May 13, 2022

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