Bumpy

About

Bumpy is ranked #2 of 33 in monorepo management tools on Inferse. It runs on API. There is a free plan.

Compared on monorepo management tools

Package managers

npm, pnpm, yarn, bungithub.com

Facts

Purpose

Bumpy is a package versioning, release, and changelog generation tool built for monorepos and also usable in simpler projects.github.com · 5 Oct 2026

Workflow

It uses Markdown bump files to declare package bump levels and changelog descriptions, which can be reviewed in pull requests.github.com · 5 Oct 2026

Release automation

Two GitHub Actions workflows can check pull requests, maintain a release pull request, and publish packages when that release pull request is merged.github.com · 5 Oct 2026

Dependency propagation

Configurable rules control how version bumps cascade through the package dependency graph.github.com · 5 Oct 2026

Publishing targets

Per-package custom publish commands can target destinations such as VSCode extensions, Docker images, JSR, and private registries.github.com · 5 Oct 2026

Release options

It supports aggregated GitHub releases, branch-based prerelease channels, commit-based bump-file generation, and pluggable changelog formatters.github.com · 5 Oct 2026

Security-related design

The repository says Bumpy uses OIDC and staged publishing, and does not require a separate GitHub action or app.github.com · 5 Oct 2026

AI tooling

Bumpy includes an agent skill for creating and updating bump files and lists compatibility with Claude Code, Cursor, OpenCode, Codex, and other agents.github.com · 5 Oct 2026

Installation

The repository documents installing @varlock/bumpy as a development dependency with Bun, npm, pnpm, or Yarn.github.com · 5 Oct 2026

License

The project is released under the MIT license, which grants permission to use, copy, modify, distribute, and sell copies subject to the license conditions.github.com · 5 Oct 2026

Known roadmap limits

The roadmap lists a standalone binary and better support for non-JavaScript packages as future work.github.com · 5 Oct 2026

Maker

DMNO Inc. identifies Bumpy as one of its products; its site names Theo Ephraim and Phil Miller as founders.dmno.io · 5 Oct 2026

Where it ranks on Inferse

• Best Monorepo Management Tools in 2026#2 of 33

Sources

• github.com/dmno-dev/bumpy· checked 5 Oct 2026
• github.com/dmno-dev/bumpy/blob/main/LICENSE· checked 5 Oct 2026
• dmno.io· checked 5 Oct 2026