#1 of 7 in Antivirus software
Bitdefender review
A Romanian security company with a long record of top marks in independent lab tests. It offers a free Windows antivirus as well as paid multi-device suites.
Last checked · Available: Global
8.7/10, Excellent
5 criteria
Strongest on protection record (9.5).
See every score and reasonScorecard
How Bitdefender scores
Regularly among the top scorers in AV-TEST and AV-Comparatives reports.
Lab reports typically show low system impact.
Free Windows edition and strong first-year pricing; renewals rise.
Suites add web protection, firewall, a limited VPN and parental controls.
Clean apps on all major platforms with an autopilot mode.
Best for
People who want top-tier protection with low fuss.
Not ideal for
Anyone who dislikes upsell prompts in the free edition.
Trade-offs
Pros and cons
What stands out
- Consistently strong lab results
- Free edition for Windows
- Low system impact
- Feature-rich suites
Worth knowing
- Renewal prices are higher than first-year prices
- Bundled VPN is limited unless upgraded
At a glance
Key facts and pricing
- Free version
- Yes
- Money-back window
- Not published
- Free trial
- Free trial of paid suites
- In AV-TEST or AV-Comparatives tests
- Yes
- Main platforms
- Windows, macOS, Android, iOS
- Company base
- Romania
- Price band
- Mid-range
- Founded
- 2001
- Based in
- Romania
Pricing: Free Windows edition plus paid suites priced per device count; first-year discounts are deep and renewals cost more. Free plan: yes (Windows).
Head to head
Compare Bitdefender with
Also consider
Bitdefender alternatives
Questions
Bitdefender: common questions
Is Bitdefender good?
Bitdefender scores 8.7 out of 10 in our antivirus software scorecard, rank 1 of 7. A Romanian security company with a long record of top marks in independent lab tests. It offers a free Windows antivirus as well as paid multi-device suites.
Who is Bitdefender best for?
Best for people who want top-tier protection with low fuss. Less suited to anyone who dislikes upsell prompts in the free edition.
How much does Bitdefender cost?
Free Windows edition plus paid suites priced per device count; first-year discounts are deep and renewals cost more. Free plan: yes (Windows).
What are Bitdefender's key terms and features?
Free version: Yes; Free trial: Free trial of paid suites; In AV-TEST or AV-Comparatives tests: Yes; Main platforms: Windows, macOS, Android, iOS; Company base: Romania. As published by the brand, last checked 2026-11-01.
What is a good alternative to Bitdefender?
ESET (8.3/10) is a highly placed option in the same list. See the full antivirus software ranking for every alternative.
Transparency
Sources and how we make money
Sources we used
Checked 1 Nov 2026. Brands change terms often; confirm on the brand's site before you buy.
How we make money
Some links to brands may earn AltFTool a commission. That never changes a score, a rank or whether a brand is listed. Scores come only from the criteria above.
Report a correctionCompare brands, tools, and deals from one place
Move from ratings into curated offers, product hubs, and hands-on utilities without losing context.