Open-source SEI

Open-source Swarmia alternative: how Deckgauge compares

By the CodPal team · Updated 17 August 2026

Start with why you are looking

People arrive at "Swarmia alternative" for three quite different reasons, and the right answer differs for each.

• Cost. Per-developer pricing that grows with headcount, on a tool whose job is to help you manage headcount.
• Data residency. Security review, a works council, or a customer contract that makes shipping engineering data to a vendor difficult.
• Fit. You tried it and wanted something else — usually more depth on one axis, or boards and roadmaps rather than dashboards.

Deckgauge answers the first two cleanly. On the third it depends entirely on which axis.

What Swarmia is genuinely good at

Swarmia's reputation is earned, and it is worth naming the parts precisely rather than waving at "team metrics".

It treats developer experience as a first-class signal. Most tools in this category infer everything from Git and Jira. Swarmia also asks engineers directly, through surveys built into the product, and puts the qualitative answer next to the quantitative one. That combination is genuinely hard to replicate from source data, because some of what slows a team down never appears in a commit log.

It meets teams in Slack. Working agreements — a team commits to something like "no PR waits more than a day for review" — get tracked and nudged in the channel where the team already is, rather than on a dashboard nobody opens. Behaviour change happens where people work, and Swarmia understood that earlier than most.

It is opinionated in a good way. The product pushes teams toward team-level measurement and away from individual scoreboards, which is the correct position and not one every vendor takes.

Feature-by-feature

On Swarmia's prices specifically: we are not quoting figures here. Swarmia's pricing table is rendered client-side and could not be verified from page source when this was written (17 August 2026), and the third-party "pricing comparison" sites that do quote numbers contradict each other by more than twofold on overlapping plan names. Check swarmia.com/pricing directly. The structural difference — per-developer recurring cost versus a hosting bill — holds regardless of the exact rate.

The cost shape, without inventing numbers

You can reason about this without knowing anyone's exact rate. Per-developer SaaS is a recurring cost that scales linearly with the thing you are trying to grow: at 25 engineers it is an expense line, at 100 it is a budget conversation, at 400 it is a procurement project. A self-hosted deployment costs roughly the same to run at 25 engineers as at 400, because engineering metadata is small — you are storing tickets, PRs and commit metadata, not video.

The honest counter-weight is that self-hosting is not free either. It costs a person's attention: upgrades, backups, and the occasional container that needs a restart. That is a real line item, it is just a fixed one rather than a per-head one. Somewhere between 20 and 50 engineers, the two curves cross for most organisations. Below that crossover, a managed SaaS with a free tier is often genuinely the better deal, and we would say so.

Where Deckgauge goes deeper

Review quality, not just review speed

Most tools measure how fast review happens. Deckgauge also measures whether it is real: the Review Quality Index combines peer-approval coverage, median PR-open time, instant-merge rate, comment rate and ticket-link rate, which together separate a team that reviews carefully from one that has learned to click Approve quickly. There is a bot-versus-human split too, which matters more every quarter as automated reviewers take a larger share of comments.

Cost, not just effort

The CapEx/OpEx report infers hours from time-in-status rather than asking anyone to fill in a timesheet, then applies a blended rate to turn those hours into money. If your finance team wants a capitalisation figure and your engineers refuse to log time — the normal situation — that gap is exactly what this closes.

Boards and roadmaps as real objects

Deckgauge is not only a dashboard. It is a Monday-style board over your synced sources, with Gantt roadmaps and org trees alongside the analytics. Leadership meetings run from the board itself — comment a conclusion, re-prioritise, set a due date — which is a different working model from reading a metrics dashboard and then going elsewhere to act.

Where Swarmia stays ahead

• Developer-experience surveys. No equivalent. If you want the qualitative signal in the same tool, Swarmia has it and Deckgauge does not.
• Slack-native behaviour change. Deckgauge shows you the number; it will not nudge the team in-channel when a PR goes stale.
• Zero operational burden. Somebody has to run the Docker stack. With Swarmia, nobody does.
• Design polish and onboarding. Swarmia is a mature commercial product with a dedicated design team, and it shows.

A fair way to decide

Answer one question honestly: is your bottleneck knowing, or acting?

If your team already knows roughly where the pain is and needs help changing behaviour — agreements, nudges, the qualitative side — Swarmia is built for that and is worth the money. If you do not yet have a trustworthy picture of delivery, or you have one and cannot justify paying per head for it, or your security review will not clear a SaaS sub-processor, then self-hosted analytics is the better first move.

Deckgauge takes four commands to stand up — see the quickstart — so you can answer this empirically rather than from a feature matrix. Swarmia's free tier for small teams makes running both for a fortnight entirely practical.

Frequently asked

Is there an open-source alternative to Swarmia?

Deckgauge is the closest source-available equivalent: DORA metrics, cycle time and throughput, code review analytics, investment allocation and roadmaps across Jira, GitHub, GitLab and Azure DevOps, self-hosted on your own infrastructure with no per-developer fee. It does not replicate Swarmia developer-experience surveys or Slack-native working agreements.

What does Swarmia do that Deckgauge does not?

Three things in particular. Developer-experience surveys, which collect qualitative feedback from engineers rather than deriving everything from source data. Slack-native nudges and working agreements, which push prompts into the team channel where work happens. And a fully managed service with a support organisation behind it. Deckgauge measures system behaviour from Jira, Git and CI data only.

What does Deckgauge do that Swarmia does not?

Self-hosting with full data residency, readable metric definitions in source, no per-developer pricing, CapEx/OpEx timesheet reporting with a blended-rate cost layer, org trees built from Microsoft Graph, a read-only MCP server for AI clients, and Monday-style boards and Gantt roadmaps as first-class objects rather than dashboards alone.

How much does Swarmia cost?

Swarmia prices per developer per month with a free tier for small teams and custom enterprise terms. Published figures from third-party comparison sites vary widely and contradict each other, so check swarmia.com/pricing directly for current numbers rather than trusting an aggregator.

Can I run both?

Yes, and for some teams that is the right answer during evaluation. They read different signals: Swarmia is strong on how engineers say the work feels, Deckgauge on what the delivery data shows. Running both for a quarter before deciding is a reasonable way to find out which question your organisation actually needs answered.

Also worth reading: the Jellyfish and LinearB comparison, and the wider survey of self-hosted DORA options.