1
Also covers technology · same kind of website · free
MathNet lets users browse and search more than 30,000 Olympiad-level problems from 47 countries in 17 languages.
Alternatives
The Best Brainstellar Puzzles Alternatives in 2026
24 alternatives4 free · 0 open source
Looking for something like Brainstellar Puzzles? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 4 are free or have a free plan.
About Brainstellar Puzzlesbrainstellar.com/puzzles
VisitBrainstellar Puzzles organizes quantitative interview puzzles into albums and difficulty levels.
Top picks at a glance
First suggestionMathNetMathNet lets users browse and search more than 30,000…Another optionMath is FunMath is Fun publishes math lessons, puzzles, games…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | MathNet | Free | Not stated | Web |
| 2 | Math is Fun | — | Not stated | Web |
| 3 | HSC Maths By Topic | — | Not stated | Web |
| 4 | Bouncy Balls | — | Not stated | Web |
| 5 | IMS | — | Not stated | — |
| 6 | EMRap | — | Not stated | Web |
| 7 | FlowingData | — | Not stated | Web |
| 8 | Passmedicine | Free | Not stated | Web |
| 9 | Wiki | — | Not stated | Web |
| 10 | ThrustCurve | — | Not stated | Web |
All Brainstellar Puzzles alternatives
2
Math is Fun
mathsisfun.comAlso covers technology · same kind of website
Math is Fun publishes math lessons, puzzles, games, worksheets and an illustrated dictionary for children, teachers and parents.
3
HSC Maths By Topic
hscmathsbytopic.firsteducation.com.auAlso covers technology · same kind of website
HSC Maths By Topic organizes mathematics material by subject area for students preparing for HSC courses.
4
Bouncy Balls
bouncyballs.orgAlso covers technology · same kind of website
Bouncy Balls visualizes classroom sound levels as bouncing balls and functions as a noise monitoring tool.
5
IMS
github.com/OpenIntroStat/imsAlso covers technology
Introduction to Modern Statistics is an open college-level textbook covering multivariable relationships and simulation-based inference.
6
EMRap
emrap.org/hdAlso covers technology · same kind of website
EMRap provides medical education resources including courses, procedures, imaging, and videos.
7
FlowingData
flowingdata.comAlso covers technology · same kind of website
FlowingData publishes articles, projects, and learning resources about data visualization and statistics.
8
Also covers technology · same kind of website · free
Passmedicine offers online revision for the 2026 UCAT, with resources for exam preparation.
9
Wiki
wiki.openrocket.infoAlso covers technology · same kind of website
The OpenRocket wiki provides collaboratively written documentation for the open-source model rocket simulator.
10
ThrustCurve
thrustcurve.orgAlso covers technology · same kind of website
ThrustCurve provides model and high-power hobby rocket motor data, including manufacturer specifications and certified performance.
11
Data Science Course By IBM
skillsbuild.org/students/course-catalog/data-s…Also covers technology · same kind of website
IBM SkillsBuild provides free AI and technology teaching resources, including lesson plans, educator training, and toolkits.
12
OneZoom
onezoom.orgAlso covers technology · same kind of website
OneZoom lets visitors browse an interactive tree of life, with suggested starting points for groups of organisms.
13
Wikispecies
species.wikimedia.orgAlso covers technology · same kind of website
The Wikispecies project lets visitors browse and contribute information about species through its online reference pages.
14
Periodic Table App
periodictableapp.comAlso covers technology · same kind of website
Periodic Table App lets users search chemical elements and view properties in an interactive periodic table.
15
Also covers technology · same kind of website · free
Outerzone lets visitors search and browse plans for model aircraft, including its catalog of more than 16,000 plans.
16
Also covers technology · same kind of website · free
Sectional Anatomy presents CT and MRI sectional anatomy resources for body regions including chest, abdomen, head, and wrist.
17
PC Progress
pc-progress.comAlso covers technology · same kind of website
PC Progress provides website account and information resources for visitors and general users.
18
Marine Biodiversity
marinebiodiversity.org.bdAlso covers technology · same kind of website
The Marine Biodiversity Portal of Bangladesh provides information about marine species and ecosystems in the country.
19
Photographic Periodic Table
periodictable.comAlso covers technology · same kind of website
The Photographic Periodic Table presents element information alongside photographs and reference material.
20
A-Z Animal
a-z-animals.comAlso covers technology · same kind of website
A-Z Animal provides an online collection of animal information and articles about the natural world.
21
Radiology Assistant
radiologyassistant.nlAlso covers technology · same kind of website
The Radiology Assistant provides educational resources and explanations for radiology.
22
UC San Diego CG
meded.ucsd.edu/clinicalmed/introduction.htmlAlso covers technology · same kind of website
The UC San Diego Practical Guide to Clinical Medicine presents a guide to clinical medicine.
23
Terence Tao Research
terrytao.wordpress.comAlso covers technology · same kind of website
Terence Tao shares research updates, expository papers, open problem discussions, and other mathematics topics on this page.
24
Subtitling Guide
baechusquad.download/guideAlso covers technology · same kind of website
This guide helps aspiring subtitlers improve their skills and points to subtitling resources.
No alternatives match this filter.
Alternatives to similar tools
MathNet24 alternativesPassmedicine24 alternativesOneZoom24 alternativesEMRap24 alternativesWiki24 alternativesThrustCurve24 alternatives
What is the best alternative to Brainstellar Puzzles?
Based on features, tags and platforms, the closest alternatives to Brainstellar Puzzles are MathNet, Math is Fun, and HSC Maths By Topic.
Is there a free alternative to Brainstellar Puzzles?
Yes. MathNet, Passmedicine, and Outerzone are free or offer a free plan.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative