Typer
A Python library for building command-line interfaces using type hints
- Also known as
- typer
Available worldwide
What is Typer?
A Python library that lets developers build intuitive command-line interfaces using type hints, with automatic help generation and shell completion. Includes a CLI tool to convert regular Python scripts into full-featured command-line applications.
Typer pricing
We don't have Typer's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
Free and open source
What Typer does
The capabilities that matter for cli frameworks, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Language
- Python
- Design style
- Declarative
- Nested subcommands
- ✓
- Auto generated help
- ✓
- Plugin system
- -
- Interactive prompts
- -
- Type validation
- ✓
- Styled rich output
- ✓
- Project scaffolding
- -
- Test harness
- -
- Open source
- ✓
- License
- MIT
Platform & deployment
Independently observed- CLI
Security & compliance
Known vulnerabilities: 0 (0 in the last 12 months) sourcea count reflects scale & disclosure, not quality
Typer FAQ
Common questions about Typer, answered from independent, dated evidence.
What is Typer?
A Python library that lets developers build intuitive command-line interfaces using type hints, with automatic help generation and shell completion. Includes a CLI tool to convert regular Python scripts into full-featured command-line applications. It is indexed under CLI Frameworks.
Source: https://typer.tiangolo.com
Is Typer free to use?
Typer is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. Pricing changes often, so verify at source before relying on it.
Source: https://typer.tiangolo.com
What platforms does Typer support?
Typer supports Windows, macOS, Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.
Source: https://typer.tiangolo.com
Is Typer open source?
Yes. Typer is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.
Source: https://github.com/fastapi/typer
Typer alternatives
Other cli frameworks we track, ranked by the same independent score.
- ClickA Python framework for building command-line interfaces with automatic help generation and minimal boilerplatelow · 31%
- urfave/cliA Go library for creating command-line applications with declarative syntax and built-in subcommand supportlow · 30%
- ocliflow · 31%
- Commander.jsSimplify Node.js command-line application developmentlow · 30%
- picocliA Java framework for creating feature-rich command-line applications.low · 36%
- Spectre.ConsoleA standard interface specification for command-line applicationslow · 24%
The vioscaleAI score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Typer, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Release cadence | 98 | 0.07 | 6.6 | ✓ |
| Capabilities | 75 | 0.08 | 6.2 | ✓ |
| Dependent projects | 67 | 0.08 | 5.3 | ✓ |
| Development activity | 45 | 0.12 | 5.3 | ✓ |
| Stars | 81 | 0.03 | 2.7 | ✓ |
| Integrations | 0 | 0.05 | 0.0 | - |
| Security posture | 0 | 0.09 | 0.0 | - |
| Package downloads | 0 | 0.17 | 0.0 | - |
| Security score | 0 | 0.05 | 0.0 | - |
| Developer Q&A activity | 0 | 0.08 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 25 | mediumsource · 2026-09-07 · 65% |
Adoption
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 4 items | mediumsource · 2026-09-10 · 69% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | License: MIT · Language: Python · Open source: Yes · Design style: declarative · Type validation: Yes · Nested subcommands: Yes | mediumsource · 2026-10-05 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | Python | highsource · 2026-10-05 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | MIT | highsource · 2026-10-05 · 95% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | PrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: … | highsource · 2026-08-18 · 75% |
Pricing
Release
Security
| Attribute | Value | Evidence |
|---|---|---|
| Vulnerabilities | Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=typer&per_page=100 · Last 12m: 0 | highsource · 2026-10-05 · 90% |
Is Typer the right choice for you?
Tell us the job, the constraints and what you weigh most, and we will rank Typer against the rest of the cli frameworks we index, using the same dated evidence weighted your way.
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