---
title: "FSWizard Alternative for G-Code Practice: Calculator vs Recall"
description: "FSWizard is a speeds-and-feeds calculator, not a code-practice tool. If you want to memorize G-code, here is the kind of alternative you actually need."
url: https://gcodepractice.com/journal/fswizard-alternative-for-g-code-practice/
canonical: https://gcodepractice.com/journal/fswizard-alternative-for-g-code-practice/
author: "Lawrence Arya"
authorUrl: https://www.linkedin.com/in/vibecoding/
published: 2026-06-02
updated: 2026-06-02
category: "Guides"
tags: ["fswizard", "calculator", "practice", "tools"]
lang: en
---

# FSWizard Alternative for G-Code Practice: Calculator vs Recall

> **TL;DR** FSWizard is a speeds-and-feeds calculator: it tells you the right RPM and feed for a cut. It is genuinely useful, but it is not a tool for memorizing G-code. If you searched for an alternative to practice G-code, what you want is a recall-practice app, which drills what the codes mean, not a calculator. They are complements: a calculator for the numbers, a practice app for the codes.

If you searched for an FSWizard alternative to practice G-code, it is worth clearing up a mismatch first. FSWizard is a speeds-and-feeds calculator: you tell it the tool, material, and operation, and it suggests an RPM and feed rate. That is a useful job, but it is a different job from learning the codes, so the alternative you want depends on what you are actually trying to do.

## Calculator vs code practice

A feeds-and-speeds calculator answers "how fast should I run this cut?" It does not teach you what `G01` or `G02` means, or how to read a program. A code-practice app does the opposite: it drills the codes until you recall them, but it will not compute your feeds. They sit on opposite sides of the work.

| Tool | Answers | Good for |
| --- | --- | --- |
| Speeds-and-feeds calculator | RPM and feed for a cut | Cutting parameters |
| Code-practice app | What the codes mean | Reading and recalling code |
| Reference app | Look up a value or code | Quick answers |

This is the same calculator-versus-practice distinction as in [pocket machinist app alternative](/journal/pocket-machinist-app-alternative/).

## The alternative a code learner wants

If your goal is to read and recall G-code, the alternative is a recall-practice tool, not another calculator. Drill the [common G-codes](/journal/common-g-codes-for-cnc-beginners/) and [common M-codes](/journal/common-m-codes-for-cnc-beginners/) with [beginner CNC code practice](/journal/beginner-cnc-code-practice/), and keep a calculator for the speeds and feeds. A free tool like [G-Code Sprint](/g-code-practice/) is the practice side; it does not calculate feeds, and it is honest about that.

## Bottom line

FSWizard is a speeds-and-feeds calculator, not a G-code learning tool. To practice the codes, you want a recall app; keep a calculator for cutting parameters. They are complements, not substitutes.

## Sources

- [CNCCookbook: G-code and M-code cheat sheet](https://www.cnccookbook.com/g-code-m-code-cnc-list-cheat-sheet/)
- [LinuxCNC G-code reference](https://linuxcnc.org/docs/html/gcode/g-code.html)
- [Wikipedia: G-code](https://en.wikipedia.org/wiki/G-code)

## Frequently asked questions

### What does FSWizard do?
It is a speeds-and-feeds calculator: you enter the tool, material, and operation, and it suggests an RPM and feed rate. It is a calculation aid for cutting parameters, not a tool for learning or memorizing G-code.

### What is a good alternative to FSWizard for learning G-code?
A recall-practice app rather than another calculator. FSWizard answers what speed and feed to use; a practice app drills what the codes mean. If your goal is to read and recall G-code, that is the alternative you want.

### Do I need a calculator or a practice app for CNC?
Both, for different jobs. Use a speeds-and-feeds calculator for cutting parameters, and a free practice app like G-Code Sprint to memorize the common codes so you read programs fluently.

*G-Code Sprint is a study and practice tool only. It is not a CNC simulator, machine controller, or safety authority. Always follow your instructor, employer, machine manual, and shop safety procedures.*

---

Source: https://gcodepractice.com/journal/fswizard-alternative-for-g-code-practice/
Author: Lawrence Arya — https://www.linkedin.com/in/vibecoding/