Frontend Frameworks

toolz

Functional utilities for iterators, functions, and dictionaries in Python.

Status
Generally available
Last checked
Checked · Oct 13, 2026
License
Open source
Pricing
Free tier · from $0
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What it is

Toolz provides a collection of functional utilities that make it easier to work with iterators, functions, and dictionaries. It is particularly useful for developers who need powerful tools for data manipulation and transformation.

Toolz stands out as a comprehensive library for functional programming utilities in Python, offering optimized performance and extensive support for developers working with complex data structures.

When it fits — and when it doesn’t

A good fit for

  • Developers working with large datasets who need efficient data processing tools.

  • Teams building complex data pipelines that require functional programming utilities.

  • Python developers looking to enhance their codebase with powerful, optimized functions.

Look elsewhere if

  • Projects requiring real-time data streaming capabilities.

  • Applications where the use of Python is not feasible or preferred.

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

  1. 01

    Performance optimizations may not be universal across all use cases

    Optimizations are geared towards specific data manipulation tasks which might not cover every developer's needs

What it does well

  • Functional utilities for iterators, functions, and dictionaries.

  • Optimized for performance with large datasets.

  • Extensive documentation and community support.

Pricing

Free tier
YesOpen source — free to use
Paid from
$0
Model
Flat rate
Enterprise plan
No

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

How Fast Is It?

Set up toolz

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →
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