
WolframAlpha
SpeedCrunch
Qalculate!
Numi App
Wolfram Mathematica
Symbolab
Soulver
fxSolver is an free online math solver, equation library, graphing calculator and science/engineering problem helper. To get started, add some formulas, fill in any input variables and press "Solve."

Symbolab
MathGPT
Gauthmath
Free online ODE solver with interactive graphs and AI-powered equation setup. Solve first and second-order ODEs instantly, no signup needed.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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| Website | fxsolver.com | odesolver.com |
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| Company | — | 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


Calculate multiple equations at once, Edit existing formulas and Create new ones, Compute large numbers of values, Plot graphs, Link your results, Solve full problems and Share worksheets with your friends. fxSolver is a free tool developed by a team of engineers and programmers with the sole...
ODE Solver is a free browser-based tool for solving ordinary differential equations numerically. No installation, no account, no cost. Enter any first or second order ODE directly using standard math notation and the solver computes a numerical solution instantly using a 4th-order Runge-Kutta...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of ODE Solver yet.
Walkthroughs and reviews on video.
fxSolver Demo
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing fxSolver and ODE Solver.
ODE Solver's answer:
It's free and works instantly. Describe your system or type your equation, get an interactive graph and a data table. That's it.
ODE Solver's answer:
It's completely free with no accounts, so there's no customer list.
ODE Solver's answer:
It runs completely in the browser, handles first and second order ODEs, and has an AI mode where you just describe what you're trying to model in plain English and it sets everything up for you.
ODE Solver's answer:
Mostly university students in engineering, physics, and applied math, plus instructors who need something they can point a class toward without any setup. Engineers and researchers who want a quick numerical result without a lot of overhead use it too.
ODE Solver's answer:
The goal was simple: build a free ODE solver that actually works well and doesn't require an account or any software. Get the math right, make it fast, and make it accessible to anyone who needs it.
ODE Solver's answer:
JavaScript with a custom RK4 numerical solver, KaTeX for equation rendering, and Plotly.js for interactive graphs. The AI input feature connects to a large language model API on the backend.
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SpeedCrunch. SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Download Documentation Donate .
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Qalculate! is a multiplatform multi-purpose desktop calculator.
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Gauthmath is a user-friendly real-time math problem-solving platform that provides online tutors for algebra, graphing, calculus, and word problems with step-by-step answers instantly.
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