Software · Utilities & files

SpeedCrunch

SpeedCrunch is a calculator, available on Windows, macOS and Linux: syntax highlighting and code completion.

Completely free
Windows, macOS and Linux
Open source
No account

Ad-supported exit link (Clictune): an intermediate page may show for a few seconds before the official website. Direct link to the website, no intermediate page

Download from the official source

Link to the official download page, ad-supported (Clictune): an intermediate page may show for a few seconds. Direct link to the download

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Geographic availability: No geographic restriction found in our sources; availability is not checked country by country.

Technical details

Pricing: Completely freeconfirmed by Flathub, Winget (Windows Package Manager)
License: GPL-2.0+ — Open source (copyleft)confirmed by Flathub, Winget (Windows Package Manager)
Open source: Yes
Commercial use: Yesconfirmed by Flathub, Official plan pages (pricing, licence, terms), Winget (Windows Package Manager)
Account required: Noconfirmed by Winget (Windows Package Manager)
Credit card required: Noconfirmed by Flathub, Winget (Windows Package Manager)
Watermark: Not applicable
Ads: not documented
Platforms: Windows, macOS and LinuxEstablished by Linux: Flathub, Unspecified source · macOS: Unspecified source · Windows: Unspecified source, Winget
Publisher: The SpeedCrunch Developers
Latest version: 1.1 (20 October 2026)
Latest activity: 22 October 2026
Source code: github.com/heldercorreia/speedcrunch

Overview

SpeedCrunch is a calculator, available on Windows, macOS and Linux.

Features described in its Flathub listing, in its GitHub repository and in its Winget manifest: syntax highlighting and code completion.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information

“SpeedCrunch is a free, open-source scientific calculator for Windows, macOS and Linux, with 50-digit precision, complex numbers and unit conversion.” — official website, 10 November 2026
“This is combined with a simple yet powerful user interface featuring on-the-fly results preview, syntax highlighting, and autocompletion.” — Flathub, 10 November 2026
“Some distinctive features are auto-completion of functions and variables, a formula book, and quick insertion of constants from various fields of knowledge.” — GitHub, 10 November 2026

At a glance

All of SpeedCrunch is free: no feature is locked behind a paid plan, and its code is open.

Its licence (GPL-2.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

Open source code
No account needed
Commercial use allowed

About

SpeedCrunch is a fast, high-precision scientific calculator. It features a syntax-highlighted scrollable display and is designed to be fully used via keyboard. It includes many built-in maths functions and supports advanced features like user-defined functions, complex numbers, and unit conversions. This is combined with a simple yet powerful user interface featuring on-the-fly results preview, syntax highlighting, and autocompletion. SpeedCrunch is available for several platforms in a number of languages.

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Unspecified source (platforms) — 9 November 2026
Facts collected from Flathub (credit card, publisher, licence, free status, platforms, commercial use, version) — 8 November 2026
Facts collected from Official plan pages (pricing, licence, terms) (commercial use) — 8 November 2026
Facts collected from Winget (Windows Package Manager) (credit card, account, source code, publisher, licence, free status, platforms, commercial use, version) — 7 November 2026
Last technical check: 6 November 2026
Description from Flathub — AppStream (Flathub)

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