1
Frontend Interview Handbook
frontendinterviewhandbook.comSame kind of website
The Front End Interview Handbook provides quiz, JavaScript coding, algorithms, and system design questions for interview preparation.
Alternatives
The Best 30-sec Alternatives in 2026
7 alternatives1 free · 1 open source
Looking for something like 30-sec? Here are 7 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 1 are free or have a free plan and 1 are open source.
This curated collection of short interview questions focuses on web development preparation.
Top picks at a glance
First suggestionFrontend Interview HandbookThe Front End Interview Handbook provides quiz, JavaScript…Free or freemium optionInterviews by AIInterviews by AI provides interview preparation with AI…Open source optionTheRemoteFreelancerA community-curated directory of resources for finding…Another optionInterview WarmupGrow with Google offers an interview preparation guide with…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Frontend Interview Handbook | — | Not stated | Web |
| 2 | Interview Warmup | — | Not stated | Web |
| 3 | Interviews.school | — | Not stated | Web |
| 4 | Tech Interview Handbook | — | Not stated | Web |
| 5 | OnSites | — | Not stated | Web |
| 6 | TheRemoteFreelancer | — | Yes | — |
| 7 | Interviews by AI | Freemium | Not stated | Web |
All 30-sec alternatives
2
Interview Warmup
grow.google/certificates/interview-warmupSame kind of website
Grow with Google offers an interview preparation guide with questions, planning advice, and AI interview training exercises.
3
Interviews.school
interviews.schoolSame kind of website
Interviews.school provides an interview preparation guide with sections on interview preparation, formats, and practice topics.
4
Tech Interview Handbook
techinterviewhandbook.org/software-engineering…Same kind of website
The Tech Interview Handbook helps software engineers prepare for interviews with guidance on expectations and preparation.
5
OnSites
onsites.fyiSame kind of website
Review software engineering interview experiences and preparation material covering coding, system design and behavioral rounds at major technology firms.
6
Open source
A community-curated directory of resources for finding remote freelance and contract work in software development, design, and related fields.
7
Free plan
Interviews by AI provides interview preparation with AI feedback and practice materials.
No alternatives match this filter.
Alternatives to similar tools
Interviews.school6 alternativesTheRemoteFreelancer24 alternativesTech Interview Handbook11 alternativesInterviews by AI6 alternativesInterview Warmup7 alternativesFrontend Interview Handbook9 alternatives
What is the best alternative to 30-sec?
Based on features, tags and platforms, the closest alternatives to 30-sec are Frontend Interview Handbook, Interview Warmup, and Interviews.school.
Is there a free alternative to 30-sec?
Yes. Interviews by AI is free or offer a free plan.
Are there open-source alternatives to 30-sec?
Yes: TheRemoteFreelancer.
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