Best Bonnie++ Alternatives in 2026
The top Bonnie++ alternatives are CrystalDiskMark, fio and HD Tune Pro: 15 disk benchmark software our editors would look at instead of Bonnie++, in our ranking order.
Bonnie++: A focused Linux benchmark for sequential, random, and filesystem operation testing. Where it falls short: platform support is limited to linux.
Switching from Bonnie++? For most disk benchmark software buyers the best Bonnie++ alternative is CrystalDiskMark, built for easy Windows SSD and disk testing.
Why People Look for a Bonnie++ Alternative
- Platform support is limited to Linux
- Running tests can consume disk space and affect system performance
- Does not provide verified latency measurement
Quick Picks by What You Need
- Best overallCrystalDiskMark9.0
Easy Windows SSD and disk testing
Visit CrystalDiskMark - Best free optionCrystalDiskMark9.0
Has a free plan
Visit CrystalDiskMark
All 15 Bonnie++ Alternatives, Ranked
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
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Best forEasy Windows SSD and disk testing
- Better than Bonnie++:
- Editor score 9.0 vs 6.9
A configurable Windows disk benchmark with detailed speed, IOPS, and latency results.
9.0/10★★★★☆Get CrystalDiskMark -
Best forBroad, rigorous cross-platform benchmarking
- Better than Bonnie++:
- Editor score 8.8 vs 6.9
A free, open-source benchmark for detailed storage and filesystem performance analysis.
- Latency measurement
- IOPS measurement
- Random I/O tests
8.8/10★★★★☆Visit fio -
Best forWindows benchmark plus drive diagnostics
- Better than Bonnie++:
- Editor score 8.5 vs 6.9
A capable Windows drive benchmark and diagnostic utility with a one-time license.
- Latency measurement
- Random I/O tests
- Command-line interface
8.5/10★★★★☆Visit EFD Software -
Best forVideo-production storage throughput testing
- Better than Bonnie++:
- Editor score 8.4 vs 6.9
A free, video-focused benchmark for local, network, and AJA-connected storage workflows.
8.4/10★★★★☆Visit AJA -
Best forFree Windows low-level benchmarking
- Better than Bonnie++:
- Editor score 7.8 vs 6.9
A free, open-source Windows tool for configurable low-level disk benchmarks.
- Latency measurement
- IOPS measurement
- Random I/O tests
7.8/10★★★★☆Visit DiskSpd -
Best forAdvanced Linux filesystem evaluation
- Better than Bonnie++:
- Editor score 7.7 vs 6.9
A deep Linux filesystem benchmark suite for repeatable performance and recovery comparisons.
- Latency measurement
- IOPS measurement
- Random I/O tests
7.7/10★★★★☆Visit site -
Best forCustom application-style I/O workloads
- Better than Bonnie++:
- Editor score 7.6 vs 6.9
A free Linux benchmark for modeling and measuring custom storage workloads.
- Latency measurement
- IOPS measurement
- Random I/O tests
7.6/10★★★★☆Visit Filebench -
Best forWindows SSD comparison testing
- Better than Bonnie++:
- Editor score 7.5 vs 6.9
A focused, free Windows utility for comparing SSD speed, latency, scoring, and IOPS.
- Latency measurement
- IOPS measurement
- Random I/O tests
7.5/10★★★★☆Try AS SSD Benchmark -
Best forLinux users wanting an interactive benchmark
- Better than Bonnie++:
- Editor score 7.4 vs 6.9
A configurable Linux disk benchmark with GUI, TUI, IOPS, latency, and report generation.
- Latency measurement
- IOPS measurement
- Random I/O tests
7.4/10★★★★☆Visit KDiskMark -
Best forCross-platform quick drive testing
- Better than Bonnie++:
- Editor score 7.3 vs 6.9
A free, cross-platform drive benchmark with varied tests but no IOPS or latency metrics.
- Random I/O tests
- Command-line interface
- Sequential tests
7.3/10★★★★☆Visit Parkdale -
Best forFree benchmark plus basic drive health
- Better than Bonnie++:
- Editor score 7.2 vs 6.9
A free drive benchmark with configurable tests, live graphs, rankings, and health monitoring.
- Random I/O tests
- Sequential tests
7.2/10★★★★☆Visit DiskBoard -
Best forMulti-platform operational storage benchmarking
- Better than Bonnie++:
- Editor score 7.1 vs 6.9
A configurable, multi-platform framework for storage performance measurement.
- Latency measurement
- Command-line interface
7.1/10★★★★☆Visit site -
Best forLinux filesystem aging and workload tests
- Better than Bonnie++:
- Editor score 7.0 vs 6.9
A flexible Linux benchmark for tailored filesystem workloads and syscall latency analysis.
- Latency measurement
- Random I/O tests
- Command-line interface
7.0/10★★★★☆Visit FFSB -
Best forDistributed graphical workload testing
A configurable, distributed benchmark for storage and network I/O workloads.
6.9/10★★★☆☆Visit Iometer -
Best forFocused macOS disk benchmarking
A free macOS disk benchmark with configurable tests and MB/s and IOPS results.
- IOPS measurement
- Random I/O tests
- Sequential tests
6.7/10★★★☆☆Visit site
Bonnie++ Alternatives: Common Questions
What is the best alternative to Bonnie++?
CrystalDiskMark: #1 in our Disk Benchmark Software ranking, with an editor score of 9.0 out of 10. A configurable Windows disk benchmark with detailed speed, IOPS, and latency results.
Is there a free alternative to Bonnie++?
Yes. CrystalDiskMark, fio, AJA System Test, DiskSpd and Modern FS Benchmark have a free plan or a free tier (14 of the 15 alternatives on this page).
Why do people look for Bonnie++ alternatives?
Platform support is limited to Linux; Running tests can consume disk space and affect system performance; Does not provide verified latency measurement.
How do I switch from Bonnie++?
Export your data from Bonnie++ (most tools have an export in their settings). Sign up for the alternative; start on its free plan or trial if it has one. Import your export and set up the integrations your team relies on. Run both side by side for a short while, then cancel Bonnie++.
How to Switch from Bonnie++
- Export your data from Bonnie++ (most tools have an export in their settings).
- Sign up for the alternative; start on its free plan or trial if it has one.
- Import your export and set up the integrations your team relies on.
- Run both side by side for a short while, then cancel Bonnie++.
Bonnie++ vs Each Alternative
| # | Tool | Free plan | Paid from | Random I/O tests | Sequential tests | IOPS measurement | Latency measurement | Score |
|---|---|---|---|---|---|---|---|---|
| 15 | Bonnie++ | Yes | Free | Yes | Yes | Yes | 6.9 | |
| 1 | CrystalDiskMark | Yes | Free | 9.0 | ||||
| 2 | fio | Yes | Free | Yes | Yes | Yes | Yes | 8.8 |
| 3 | HD Tune Pro | No | $29.95/user one-time | Yes | Yes | Yes | 8.5 | |
| 4 | AJA System Test | Yes | Free | 8.4 | ||||
| 5 | DiskSpd | Yes | Free | Yes | Yes | Yes | Yes | 7.8 |
| 6 | Modern FS Benchmark | Yes | Free | Yes | Yes | Yes | Yes | 7.7 |
| 7 | Filebench | Yes | Free | Yes | Yes | Yes | Yes | 7.6 |
| 8 | AS SSD Benchmark | Yes | Free | Yes | Yes | Yes | Yes | 7.5 |
| 9 | KDiskMark | Yes | Free | Yes | Yes | Yes | Yes | 7.4 |
| 10 | Parkdale | Yes | Free | Yes | Yes | No | No | 7.3 |
| 11 | DiskBoard | Yes | Free | Yes | Yes | 7.2 | ||
| 12 | Storage Benchmark Kit | Yes | Free | Yes | 7.1 | |||
| 13 | FFSB | Yes | Free | Yes | Yes | Yes | 7.0 | |
| 14 | Iometer | Yes | Free | 6.9 | ||||
| 15 | AmorphousDiskMark | Yes | Free | Yes | Yes | Yes | 6.7 |
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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