Do I need to commit .gitignore?

Yes — .gitignore should be committed to the repository so all collaborators benefit from the same ignore rules.

How do I add custom patterns?

Open your .gitignore file and add the pattern on a new line. Use # for comments, * for wildcards, / to match directories, and ! to un-ignore a previously ignored path.

How do I ignore a file that is already tracked?

Adding a file to .gitignore does not remove it from tracking if it was previously committed. Run: git rm --cached to stop tracking it without deleting the file locally.

Should I commit mix.lock?

Yes — mix.lock pins exact dependency versions and should always be committed.

.gitignore for Elixir

Elixir/Erlang build artifacts, Mix dependencies, and compiled BEAM files.

Quick presets

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Elixir

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10 patterns · 241 B

# Generated by DevZone Tools — https://devzone.tools/tools/gitignore-generator
# Templates: Elixir
# 2026-04-20

# ---- Elixir ----
# Elixir
/_build/
/cover/
/deps/
/doc/
/.fetch
erl_crash.dump
*.ez
*.beam
/config/*.secret.exs
.elixir_ls/

What this template ignores

Ignores Mix build output (_build/), dependencies (deps/), compiled BEAM files, crash dumps, and secret configuration files.

Common additions

+.env — if using dotenv for secrets

Commonly paired with

erlang Combine →

Frequently asked questions

Do I need to commit .gitignore?: Yes — .gitignore should be committed to the repository so all collaborators benefit from the same ignore rules.
How do I add custom patterns?: Open your .gitignore file and add the pattern on a new line. Use # for comments, * for wildcards, / to match directories, and ! to un-ignore a previously ignored path.
How do I ignore a file that is already tracked?: Adding a file to .gitignore does not remove it from tracking if it was previously committed. Run: git rm --cached <file> to stop tracking it without deleting the file locally.
Should I commit mix.lock?: Yes — mix.lock pins exact dependency versions and should always be committed.

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