Best FFSB Alternatives in 2026
The top FFSB alternatives are CrystalDiskMark, fio and HD Tune Pro: 15 disk benchmark software our editors would look at instead of FFSB, in our ranking order.
FFSB: A flexible Linux benchmark for tailored filesystem workloads and syscall latency analysis. Where it falls short: command-line only, with local build and execution requirements.
Switching from FFSB? For most disk benchmark software buyers the best FFSB alternative is CrystalDiskMark, built for easy Windows SSD and disk testing.
Why People Look for an FFSB Alternative
- Command-line only, with local build and execution requirements
- Listed project update dates back to 2013
- Latest downloadable release is ffsb-6.0-rc2 from 2008
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 FFSB 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 FFSB:
- Editor score 9.0 vs 7.0
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 FFSB:
- Editor score 8.8 vs 7.0
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 FFSB:
- Editor score 8.5 vs 7.0
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 FFSB:
- Editor score 8.4 vs 7.0
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 FFSB:
- Editor score 7.8 vs 7.0
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 FFSB:
- Editor score 7.7 vs 7.0
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 FFSB:
- Editor score 7.6 vs 7.0
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 FFSB:
- Editor score 7.5 vs 7.0
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 FFSB:
- Editor score 7.4 vs 7.0
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 FFSB:
- Editor score 7.3 vs 7.0
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 FFSB:
- Editor score 7.2 vs 7.0
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 FFSB:
- Editor score 7.1 vs 7.0
A configurable, multi-platform framework for storage performance measurement.
- Latency measurement
- Command-line interface
7.1/10★★★★☆Visit site -
Best forDistributed graphical workload testing
A configurable, distributed benchmark for storage and network I/O workloads.
6.9/10★★★☆☆Visit Iometer -
Best forLinux filesystem and file-operation tests
A focused Linux benchmark for sequential, random, and filesystem operation testing.
- IOPS measurement
- Random I/O tests
- Command-line interface
6.9/10★★★☆☆Visit Bonnie++ -
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
FFSB Alternatives: Common Questions
What is the best alternative to FFSB?
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 FFSB?
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 FFSB alternatives?
Command-line only, with local build and execution requirements; Listed project update dates back to 2013; Latest downloadable release is ffsb-6.0-rc2 from 2008.
How do I switch from FFSB?
Export your data from FFSB (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 FFSB.
How to Switch from FFSB
- Export your data from FFSB (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 FFSB.
FFSB vs Each Alternative
| # | Tool | Free plan | Paid from | Random I/O tests | Sequential tests | IOPS measurement | Latency measurement | Score |
|---|---|---|---|---|---|---|---|---|
| 13 | FFSB | Yes | Free | Yes | Yes | Yes | 7.0 | |
| 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 | Iometer | Yes | Free | 6.9 | ||||
| 14 | Bonnie++ | Yes | Free | Yes | Yes | Yes | 6.9 | |
| 15 | AmorphousDiskMark | Yes | Free | Yes | Yes | Yes | 6.7 |
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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