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foxglove
mcap
Rust2022–2023
foxglove / mcap

mcap

MCAP is a modular, performant, and serialization-agnostic container file format, useful for pub/sub and robotics applications.

Web DevelopmentSystems & InfrastructureScience & EngineeringData & DatabasesRobotics & IoT
Explore on GitHubRead Hacker News discussions
2Distinct people
2Mentions
0Explicit recommenders
1.1KGitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

MCAP is a modular, performant, and serialization-agnostic container file format, useful for pub/sub and robotics applications.

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by week2 dated mentions

Observed mentions: 2022-11-28 13:14:46 UTC to 2023-05-23 18:23:31 UTC. Weeks start Monday, UTC.

012022-11-28 00:00:00 UTC to 2022-12-05 00:00:00 UTC (exclusive): 1 mentions; 1 submissions, 0 commentsNov 282022-12-05 00:00:00 UTC to 2022-12-12 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-12-12 00:00:00 UTC to 2022-12-19 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-12-19 00:00:00 UTC to 2022-12-26 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-12-26 00:00:00 UTC to 2023-01-02 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-01-02 00:00:00 UTC to 2023-01-09 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-01-09 00:00:00 UTC to 2023-01-16 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-01-16 00:00:00 UTC to 2023-01-23 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-01-23 00:00:00 UTC to 2023-01-30 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-01-30 00:00:00 UTC to 2023-02-06 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-02-06 00:00:00 UTC to 2023-02-13 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-02-13 00:00:00 UTC to 2023-02-20 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-02-20 00:00:00 UTC to 2023-02-27 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 commentsFeb 202023-02-27 00:00:00 UTC to 2023-03-06 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-03-06 00:00:00 UTC to 2023-03-13 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-03-13 00:00:00 UTC to 2023-03-20 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-03-20 00:00:00 UTC to 2023-03-27 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-03-27 00:00:00 UTC to 2023-04-03 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-04-03 00:00:00 UTC to 2023-04-10 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-04-10 00:00:00 UTC to 2023-04-17 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-04-17 00:00:00 UTC to 2023-04-24 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-04-24 00:00:00 UTC to 2023-05-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-05-01 00:00:00 UTC to 2023-05-08 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-05-08 00:00:00 UTC to 2023-05-15 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-05-15 00:00:00 UTC to 2023-05-22 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-05-22 00:00:00 UTC to 2023-05-29 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsMay 22

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
Nov 282022-11-28 00:00:00 UTC2022-12-05 00:00:00 UTC110
Dec 52022-12-05 00:00:00 UTC2022-12-12 00:00:00 UTC000
Dec 122022-12-12 00:00:00 UTC2022-12-19 00:00:00 UTC000
Dec 192022-12-19 00:00:00 UTC2022-12-26 00:00:00 UTC000
Dec 262022-12-26 00:00:00 UTC2023-01-02 00:00:00 UTC000
Jan 22023-01-02 00:00:00 UTC2023-01-09 00:00:00 UTC000
Jan 92023-01-09 00:00:00 UTC2023-01-16 00:00:00 UTC000
Jan 162023-01-16 00:00:00 UTC2023-01-23 00:00:00 UTC000
Jan 232023-01-23 00:00:00 UTC2023-01-30 00:00:00 UTC000
Jan 302023-01-30 00:00:00 UTC2023-02-06 00:00:00 UTC000
Feb 62023-02-06 00:00:00 UTC2023-02-13 00:00:00 UTC000
Feb 132023-02-13 00:00:00 UTC2023-02-20 00:00:00 UTC000
Feb 202023-02-20 00:00:00 UTC2023-02-27 00:00:00 UTC000
Feb 272023-02-27 00:00:00 UTC2023-03-06 00:00:00 UTC000
Mar 62023-03-06 00:00:00 UTC2023-03-13 00:00:00 UTC000
Mar 132023-03-13 00:00:00 UTC2023-03-20 00:00:00 UTC000
Mar 202023-03-20 00:00:00 UTC2023-03-27 00:00:00 UTC000
Mar 272023-03-27 00:00:00 UTC2023-04-03 00:00:00 UTC000
Apr 32023-04-03 00:00:00 UTC2023-04-10 00:00:00 UTC000
Apr 102023-04-10 00:00:00 UTC2023-04-17 00:00:00 UTC000
Apr 172023-04-17 00:00:00 UTC2023-04-24 00:00:00 UTC000
Apr 242023-04-24 00:00:00 UTC2023-05-01 00:00:00 UTC000
May 12023-05-01 00:00:00 UTC2023-05-08 00:00:00 UTC000
May 82023-05-08 00:00:00 UTC2023-05-15 00:00:00 UTC000
May 152023-05-15 00:00:00 UTC2023-05-22 00:00:00 UTC000
May 222023-05-22 00:00:00 UTC2023-05-29 00:00:00 UTC101

What Hacker News says

2 sources
amacneil·May 23, 2023
> Especially a tool like RViz is always missing. And in many many robotics video I see (of a moderately complex robot), there's ROS's RViz on some screen. I would love the future robotics development stack to be more modular, so that (for example) future middleware solutions don't need to also bundle their own visualization software. This was direct inspiration for creating Foxglove Studio[0] for visualization and MCAP[1] for logging - both work great with ROS, or equally well without it. [0] https://github.com/foxglove/studio [1] https://github.com/foxglove/mcap
In ROS 2 Iron Irwini Release

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