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50 TOML Config Examples for Developers

October 27, 2026 · 5 min read · By the DollarWise team
50 TOML Config Examples for Developers
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TOML is the quiet config language behind tools like Cargo, Hugo, and Python’s pyproject.toml — readable, forgiving, and easy to get subtly wrong. These fifty examples cover the sections developers write most: server, database, logging, authentication, caching, email, storage, payments, and feature flags, plus profile variants for dev, staging, and production. They are written for developers starting a new project or standardizing configs across services. Copy a block, change the values, and the config is done.

What’s inside this resource

Each example is a complete, valid TOML section with realistic values — not fragments. The pack is organized by concern so you can grab just the section you need, and it includes the patterns that prevent common mistakes: environment-specific profiles instead of commented-out blocks, secrets referenced by environment variable name instead of written in plain text, and explicit types so a port is never accidentally a string. Keep one config file per environment and let profiles handle the differences.

The resource

[server]
host = "127.0.0.1"
port = 8080
debug = true

[database]
engine = "postgres"
host = "db.local"
port = 5432
name = "app_db"

[app]
name = "my-app"
version = "1.0.0"
authors = ["Sam", "Lee"]

[logging]
level = "info"
file = "/var/log/app.log"
rotate = true

[features]
search = true
analytics = false
beta = false

[theme]
name = "dark"
accent = "#3366ff"
font = "Inter"

[api]
base_url = "https://api.example.com"
timeout = 30
retries = 3

[cache]
backend = "redis"
ttl = 3600
prefix = "app:"

[email]
smtp_host = "mail.example.com"
smtp_port = 587
tls = true

[storage]
provider = "s3"
bucket = "my-bucket"
region = "us-east-1"

[build]
optimize = true
minify = true
sourcemap = false

[limits]
max_upload_mb = 50
max_users = 1000
rate_limit = 100

[i18n]
default = "en"
supported = ["en", "es", "fr"]

[security]
password_min_length = 12
two_factor = true
session_hours = 24

[backup]
enabled = true
schedule = "daily"
keep_days = 30

[notifications]
email = true
push = false
slack_webhook = ""

[search]
engine = "sqlite"
index_path = "./index"
max_results = 20

[payments]
provider = "stripe"
currency = "USD"
test_mode = true

[jobs]
workers = 4
queue = "default"
retry_attempts = 3

[monitoring]
metrics = true
endpoint = "/metrics"
alert_email = "[email protected]"

[profile.dev]
debug = true
log_level = "debug"

[profile.prod]
debug = false
log_level = "warn"

[users.admin]
name = "Admin"
email = "[email protected]"
role = "admin"

[integrations.github]
enabled = true
token_env = "GITHUB_TOKEN"

[integrations.slack]
enabled = false
channel = "#general"

[content]
posts_per_page = 10
comments = true
rss = true

[media]
max_width = 1920
quality = 85
formats = ["jpg", "webp"]

[seo]
title_suffix = " | My Site"
meta_description = "A helpful site."
robots = "index, follow"

[analytics]
provider = "plausible"
domain = "example.com"

[auth]
method = "oauth"
providers = ["google", "github"]

[rate_limits.api]
per_minute = 60
burst = 120

[server.tls]
enabled = true
cert = "/etc/ssl/cert.pem"

[database.pool]
min = 2
max = 10
timeout = 5

[logging.outputs]
console = true
file = true
syslog = false

[features.flags]
new_dashboard = true
dark_mode = true

[app.meta]
created = 2026-10-27
license = "MIT"

[backup.s3]
bucket = "backups"
region = "eu-west-1"

[email.templates]
welcome = "welcome.html"
reset = "reset.html"

[cache.redis]
host = "127.0.0.1"
port = 6379
db = 0

[search.filters]
categories = true
tags = true
date_range = true

[payments.plans]
free = 0
pro = 9
team = 29

[monitoring.alerts]
email = "[email protected]"
threshold_cpu = 80

[jobs.queues]
default = 4
email = 2
media = 2

[i18n.locales]
en = "English"
es = "Spanish"
fr = "French"

[profile.staging]
debug = true
log_level = "info"

[users.guest]
name = "Guest"
role = "reader"

[content.drafts]
visible = false
auto_save = true

[media.thumbnails]
sizes = [150, 300, 600]
format = "webp"

[seo.sitemap]
enabled = true
changefreq = "weekly"

[auth.sessions]
cookie_name = "session"
secure = true
same_site = "lax"

How to use this resource

  1. Pick the items that fit your situation and ignore the rest — a template pack works best when you use ten items well, not all of them once.
  2. Replace every bracketed placeholder ([Business Name], [topic], [Name]) with your own details before publishing or sharing.
  3. Save your customized version in one place so you can reuse it next time without starting over.
  4. Review the result once in its real context — a listing, a page, or a reply — before moving on.

Download the 50 TOML Config Examples for Developers

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Getting the most from this resource

Think of this pack as a starting point, not a finished product. The items are deliberately general so they fit many situations, which means your best results come from tailoring them — swapping in your own examples, trimming what does not apply, and combining two or three items into something that fits your exact case. Set aside twenty minutes to do that tailoring once, and the pack will serve you for months. If you ever get stuck choosing between items, pick the simpler one: simple and used beats clever and ignored, every single time.

Frequently asked questions

What is TOML used for?

Configuration files. It is the format behind Cargo’s Cargo.toml, Python’s pyproject.toml, and Hugo’s config files — designed to be obvious to humans and easy to parse for machines.

How is TOML different from JSON or YAML?

TOML is less noisy than JSON (no braces everywhere) and stricter than YAML (indentation cannot silently change meaning). That middle ground is why tools adopted it for configs.

Should secrets go in a TOML file?

No. Store the secret in an environment variable or a secrets manager, and put only the variable name in the config. Committed secrets are very hard to fully revoke.

#toml#config#developers
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Written by the DollarWise team

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