browser extensions / job search tools
best interview prep extensions — 2026.
preparing for every application manually wastes hours. here is an honest look at how to turn a job posting into a ready-to-use interview brief — in your browser, in seconds.
why generic prep tools miss the point
- generic questions do not map to the role — practice questions for "software engineer" differ from those for "senior backend engineer at a Series B fintech". the posting tells you exactly what they care about.
- STAR format is easy to forget under pressure — having a templated Situation/Task/Action/Result scaffold ready before the interview prevents blanking on the structure mid-answer.
- company research is often skipped — most candidates research the product but miss the hiring manager's public priorities or the team's recent news, which interviewers notice.
- context switching kills momentum — copy-pasting a posting into ChatGPT, formatting the output, then switching back to the job board breaks the application flow. a one-click extension keeps you in context.
the extension we make.
interviewprep reads the job posting in your current tab and produces a structured prep brief — no copy-pasting, no prompt engineering, no tab switching.
open a job posting, click the icon — get 5 likely questions, STAR-format prompts, and a company research card ready in under 10 seconds.
- reads the live job posting — no copy-paste needed
- 5 tailored interview questions based on the role + company
- STAR-format scaffold for each question
- company research card: size, stage, recent news signals
- works on LinkedIn, Indeed, Greenhouse, Lever, Workday
- brief JSON export + npm CLI companion for terminal workflows
- chrome + firefox + edge — all three stores
copy the posting, open a new tab, paste into ChatGPT or Claude, write a prompt, read unstructured output. works, but takes 5–10 minutes per role.
- copy-paste required for every application
- no STAR scaffold — you format output yourself
- no company research card generation
- breaks your flow between the job board and the AI tab
- works on any posting, any AI model
- free if you already have a ChatGPT or Claude account
grow.google/certificates/interview-warmup — practice general questions by category (data analytics, UX, PM). no job-posting integration.
- free, from Google — trustworthy source
- covers broad career categories
- does not read a specific job posting
- no company-specific or role-specific questions
- no STAR-format output
- web only — not a browser extension, not on Firefox/Edge
community-submitted questions for specific companies — useful for past interview experiences, not for generating new prep from the current posting.
- real questions from past candidates at that company
- company-specific coverage for large employers
- not a browser extension — separate website visit required
- does not read the posting you are viewing
- no STAR prompts or structured output
- coverage varies — sparse for startups and smaller companies
feature comparison.
| feature | interviewprep (free) | ChatGPT manual | Google Interview Warmup | Glassdoor Q&A |
|---|---|---|---|---|
| reads current job posting | ✓ yes | ✗ manual paste | ✗ no | ✗ no |
| role-specific questions | ✓ yes | ~ if prompted well | ✗ category only | ~ historical, company-level |
| STAR-format output | ✓ yes, built in | ~ if you ask for it | ✗ no | ✗ no |
| company research card | ✓ yes | ~ separate prompt | ✗ no | ~ company profile page |
| one-click in browser | ✓ yes — extension | ✗ tab switch required | ✗ separate site | ✗ separate site |
| works on LinkedIn | ✓ yes | ~ paste manually | ✗ no | ✗ no |
| works on Indeed / Greenhouse | ✓ yes | ~ paste manually | ✗ no | ✗ no |
| npm CLI companion | ✓ yes | ✗ no | ✗ no | ✗ no |
| available on Chrome | ✓ yes | ✓ web app | ✓ web app | ✓ web app |
| available on Firefox | ✓ yes — add-on | ✓ web app | ✓ web app | ✓ web app |
| available on Edge | ✓ yes — add-on | ✓ web app | ✓ web app | ✓ web app |
| no account required (free tier) | ✓ yes | ✗ ChatGPT account | ✓ yes | ~ limited without account |
| price (entry) | free — 5 briefs/mo | free (ChatGPT free plan) | free | free (limited) |
verdict by situation.
active job seeker (5+ apps/week)
interviewprep
if you are applying to five or more roles a week, the manual ChatGPT workflow adds up. one-click briefs from the job posting page save 30–60 minutes per week and keep the STAR scaffold consistent across every prep session.
occasional applicant / one-off prep
ChatGPT manual
if you apply once or twice a year and already have ChatGPT, the manual paste workflow is fine. the friction is real but acceptable for a rare event. save interviewprep for when the volume picks up.
general career skills practice
Google Interview Warmup + interviewprep
Google Interview Warmup is good for drilling general behavioural questions by category. use it for ongoing practice; use interviewprep when you have a real posting to prep against. they complement each other.
frequently asked questions.
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Is there a Chrome extension for interview preparation?
Yes. interviewprep by vøiddo is a Chrome, Firefox, and Edge extension that turns any job posting into a full interview prep brief in one click. It extracts the role title, company, and posting details, then generates 5 likely interview questions, STAR-format answer prompts, and a company research card. The free tier covers 5 briefs per month with no account required.
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Can I use ChatGPT to prepare for an interview instead?
Yes — but it requires multiple manual steps: copy the job posting text, open ChatGPT, paste it in, write a prompt, and format the output yourself. interviewprep automates this in one click from the job posting page. For high-volume job searches, the time saving is significant. For a single rare application, the manual ChatGPT workflow is a reasonable alternative.
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What is Google Interview Warmup and how does it compare?
Google Interview Warmup is a free web tool at grow.google that gives you general practice questions for broad categories — data analytics, UX design, project management. It does not read a specific job posting and cannot generate role-specific or company-specific questions. interviewprep reads the posting you are currently viewing and tailors questions to that exact role and company. The two tools are complementary: use Warmup for ongoing general practice, interviewprep for per-application prep.
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Does interviewprep work on LinkedIn, Indeed, and Greenhouse?
Yes. interviewprep supports LinkedIn, Indeed, Greenhouse, Lever, Workday, and most public career pages. It extracts the role title, company name, and posting content from the current tab automatically — you do not need to copy or paste anything.
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What is a STAR format answer prompt?
STAR stands for Situation, Task, Action, Result — a structured technique for answering behavioural interview questions clearly. interviewprep generates a STAR-format scaffold for each of the 5 questions it produces, so you can immediately start filling in your own experience without needing to remember the framework under pressure.
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What does the interviewprep Pro plan include?
Pro unlocks 100 prep briefs per month (vs 5 on free), multi-tab batch mode so you can generate briefs for several open tabs at once, and the email-yourself feature that sends the brief to your inbox for mobile review before the interview. Pro is $6.99/month or $59.99/year, billed by Paddle. Cancel from the customer portal at any time. 14-day refund, no questions asked.
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Does interviewprep work on Firefox and Edge?
Yes. interviewprep is available on Chrome (Chrome Web Store), Firefox (Mozilla Add-ons), and Microsoft Edge (Edge Add-ons). All three versions are at the same feature level. Install links for all three are on the interviewprep page.
prep smarter — one click per posting.
free for up to 5 briefs a month. no account required to start. 5 questions + STAR prompts + company card from the job posting you are already viewing.
Pro $6.99/mo · see Pro features →
more from vøiddo extensions
other job search & productivity extensions.
each extension does one job well. no settings sprawl, no forced account.
ATS autofill + AI cover letters on job posting pages. supports Workday, Greenhouse, Lever and 8 more. free tier included. $4.99/mo Pro.
details →paste a LinkedIn profile or meeting invite — get a printable one-page meeting brief in under 5 seconds. free, no account.
details →live token count + estimated cost while you chat with ChatGPT, Claude, Gemini, and others. free, nothing sent anywhere.
details →