The Best Disk Benchmark Software in 2026
We researched disk benchmark software from official websites, including pricing pages, plan tables, and product documentation. Rankings reflect each product’s core storage-performance measurements, value for money, and verified features for comparing sequential speed, random I/O, latency, and IOPS.
Our top picks
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Top ranked
CrystalDiskMark#1 of 299.0/10A configurable Windows disk benchmark with detailed speed, IOPS, and latency results.
Free plan
-
Runner-up
fio#2 of 298.8/10A free, open-source benchmark for detailed storage and filesystem performance analysis.
Free plan
-
Top-ranked free plan
AJA System Test#4 of 298.4/10A free, video-focused benchmark for local, network, and AJA-connected storage workflows.
Free plan
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.
The full ranking 29 tools, best first
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Best forEasy Windows SSD and disk testing
A configurable Windows disk benchmark with detailed speed, IOPS, and latency results.
9.0/10★★★★☆Get CrystalDiskMark -
Best forBroad, rigorous cross-platform benchmarking
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
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
A free, video-focused benchmark for local, network, and AJA-connected storage workflows.
8.4/10★★★★☆Visit AJA -
Best forFree Windows low-level benchmarking
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
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
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
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
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
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
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
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
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 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 -
Best forCrystalDiskMark-style Unix testing
A focused Unix disk benchmarker with CrystalDiskMark-like profiles and IOPS reporting.
- IOPS measurement
- Random I/O tests
- Command-line interface
6.6/10★★★☆☆Visit disk-mark-me -
Best forSimple Windows disk benchmark reports
A free Windows benchmark for sequential, random, and mixed storage workloads.
- Latency measurement
- IOPS measurement
- Random I/O tests
6.5/10★★★☆☆Visit D-Bench -
Best forLinux all-around system benchmarking
A lightweight Linux benchmark covering storage, CPU, and memory reporting.
- Latency measurement
- IOPS measurement
- Command-line interface
6.4/10★★★☆☆Visit Quickbench -
Best forParallel multi-drive Linux testing
A focused Linux CLI for parallel drive throughput testing, not random or latency analysis.
- Command-line interface
- Sequential tests
6.3/10★★★☆☆Visit dperf -
Best forSequential write testing on Unix systems
A focused, open-source utility for measuring sequential disk writes on macOS and Linux.
- IOPS measurement
- Command-line interface
- Sequential tests
6.2/10★★★☆☆Visit SSD Benchmark -
Best forEstablished cross-platform throughput testing
A free, configurable benchmark for cross-platform storage throughput testing.
6.1/10★★★☆☆Visit ATTO -
Best forSimple cross-platform file benchmarks
A configurable, open-source disk benchmark for simple cross-platform file tests.
- Random I/O tests
- Command-line interface
- Sequential tests
6.0/10★★★☆☆Visit site -
Best forCustom Linux and Windows file workloads
A configurable file-workload benchmark for engineers who need timing detail, not IOPS or latency metrics.
- Command-line interface
- Sequential tests
6.0/10★★★☆☆Visit Illumine IT -
Best forAdvanced macOS storage diagnostics
A deep macOS benchmark suite for storage diagnostics, testing, and review work.
- IOPS measurement
- Random I/O tests
- Command-line interface
6.0/10★★★☆☆Visit diglloydTools -
Best forMinimal open-source Windows benchmarking
A free, configurable Windows disk benchmark with 32-bit and 64-bit executables.
6.0/10★★★☆☆Visit NetworkDLS -
Best forBasic Windows file-copy benchmarking
A free Windows tool for timing file copies, reads, and test-file creation.
- Command-line interface
6.0/10★★★☆☆Visit Nodesoft -
Best forSource-code security analysis, not disk benchmarking
A capable source-code security analyzer, but not a disk benchmarking tool.
6.0/10★★★☆☆Visit GitHub CodeQL -
Best forVideo-oriented read/write checks
A focused free tool for checking sustained storage read/write performance.
5.1/10★★★☆☆Visit Blackmagic
No tools match those filters.
Compare at a glance
| # | Tool | Free plan | Paid from | Random I/O tests | Sequential tests | IOPS measurement | Score |
|---|---|---|---|---|---|---|---|
| 1 | CrystalDiskMark | Yes | Free | 9.0 | |||
| 2 | fio | Yes | Free | Yes | Yes | Yes | 8.8 |
| 3 | HD Tune Pro | No | $29.95/user one-time | Yes | Yes | 8.5 | |
| 4 | AJA System Test | Yes | Free | 8.4 | |||
| 5 | DiskSpd | Yes | Free | Yes | Yes | Yes | 7.8 |
| 6 | Modern FS Benchmark | Yes | Free | Yes | Yes | Yes | 7.7 |
| 7 | Filebench | Yes | Free | Yes | Yes | Yes | 7.6 |
| 8 | AS SSD Benchmark | Yes | Free | Yes | Yes | Yes | 7.5 |
| 9 | KDiskMark | Yes | Free | Yes | Yes | Yes | 7.4 |
| 10 | Parkdale | Yes | Free | Yes | Yes | No | 7.3 |
| 11 | DiskBoard | Yes | Free | Yes | Yes | 7.2 | |
| 12 | Storage Benchmark Kit | Yes | Free | 7.1 | |||
| 13 | FFSB | Yes | Free | Yes | Yes | 7.0 | |
| 14 | Iometer | Yes | Free | 6.9 | |||
| 15 | Bonnie++ | Yes | Free | Yes | Yes | Yes | 6.9 |
| 16 | AmorphousDiskMark | Yes | Free | Yes | Yes | Yes | 6.7 |
| 17 | disk-mark-me | Yes | Free | Yes | Yes | Yes | 6.6 |
| 18 | D-Bench | Yes | Free | Yes | Yes | Yes | 6.5 |
| 19 | Quickbench | Yes | Free | No | Yes | Yes | 6.4 |
| 20 | dperf | Yes | Free | No | Yes | No | 6.3 |
| 21 | SSD Benchmark | Yes | Free | No | Yes | Yes | 6.2 |
| 22 | ATTO Disk Benchmark | Yes | Free | 6.1 | |||
| 23 | simple-disk-benchmark | Yes | Free | Yes | Yes | 6.0 | |
| 24 | Illumine IT disk-benchmark | Yes | Free | No | Yes | No | 6.0 |
| 25 | diglloydTools DiskTester | No | Yes | Yes | Yes | 6.0 | |
| 26 | DiskMark | Yes | Free | 6.0 | |||
| 27 | Disk Bench | Yes | Free | 6.0 | |||
| 28 | GitHub CodeQL | Yes | $30/user/mo | 6.0 | |||
| 29 | Blackmagic Disk Speed Test | Yes | Free | 5.1 |
Head-to-head All 28 comparisons →
- CrystalDiskMark vs fio
- CrystalDiskMark vs HD Tune Pro
- CrystalDiskMark vs AJA System Test
- CrystalDiskMark vs DiskSpd
- CrystalDiskMark vs Modern FS Benchmark
- CrystalDiskMark vs Filebench
- CrystalDiskMark vs AS SSD Benchmark
- fio vs HD Tune Pro
- fio vs AJA System Test
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How we rank disk benchmark software
Every tool on this page was researched by iTechGuides Editors from its official website — pricing pages, plan tables and product documentation. We rank on how well each one does this category's core job, what the free or entry plan includes, and where it falls short. Where we have enough verified facts, the score out of 10 is a rubric — job fit, value and how much we could verify — shown with its breakdown on every tool's page; a tool we have not verified enough to score yet shows its rank without a number. Scores are re-checked when a product changes its plans. Read the full editorial policy, or submit a tool we missed.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update