An open-source command-line toolkit for reading, writing, converting, sorting, indexing, and analyzing SAM, BAM, and CRAM sequencing alignment files.
Official manuals document broad alignment-file processing, indexing, statistics, pileup, consensus, and stream-based workflows. It is free under the MIT/Expat license, but requires command-line and bioinformatics familiarity. No reliable public review-platform evidence was found; ratings are editorial assessments, not user scores.
This profile combines documented product information and independent evidence where available. It is not a hands-on test unless TechZella explicitly identifies one.
Samtools is an open-source command-line toolkit for working with high-throughput sequencing alignment files. Its utilities convert, sort, merge, index, inspect, and report statistics for SAM, BAM, and CRAM data.
It is designed for local and scripted workflows. Commands can read from standard input and write to standard output, so teams can connect processing steps with shell pipes. Regional retrieval generally depends on coordinate-sorted, indexed input.
Samtools is not the same as HTSlib. Samtools supplies command-line programs; HTSlib is the C library used to handle sequencing formats and can be used by developers building other applications.
A quick way to understand who this product may suit, where its limits matter, and which facts are most relevant before you compare alternatives.
Researchers and bioinformatics teams that need command-line tools to manipulate, validate, index, and inspect sequencing alignment files in SAM, BAM, or CRAM formats.
Users seeking a graphical alignment viewer, managed cloud workspace, vendor-provided onboarding, or a standalone application programming library may need other tools or additional software, and should evaluate alternatives such as Picard or Sambamba instead.
CLI, Command line, Linux, macOS, Windows
6.8/10
These are the product-specific differences that may matter when deciding whether the software fits your workflow. They are based on documented evidence rather than a universal ranking.
These are documented constraints or practical friction points that may matter before you adopt the product.
Teams comparing checksum outputs across releases should account for the versioned behavior before treating results as directly comparable.
Evidence source ↗A source build can require additional setup beyond downloading and compiling the executable.
Evidence source ↗Open-source software distributed under the MIT/Expat license. No paid plans or hosted-service pricing are listed.
Check current pricing →Pricing may change. Verify current plans on the vendor's website.
Compare similar products directly, then see which alternatives may make more sense when your requirements differ.
| Decision factor | Samtools | Picard | Sambamba |
|---|---|---|---|
| Core scope | General utilities for SAM, BAM, and CRAM alignment-file conversion, sorting, indexing, retrieval, and analysis. | Java command-line tools for high-throughput sequencing data, including SAM, BAM, CRAM, and VCF workflows. Source ↗ | Tools for SAM/BAM data, with commands for operations such as sorting and indexing. Source ↗ |
| Implementation | C command-line utilities built using HTSlib. | Java application that runs as a JAR and requires Java 17 or later. Source ↗ | Command-line tools and a library written in the D programming language. Source ↗ |
| License and pricing | MIT/Expat licensed; no software fee is listed. | MIT licensed; no software fee is listed. Source ↗ | GNU GPL v2 or later; no software fee is listed. Source ↗ |
Only factors supported by the available research are shown. The comparison is descriptive, not a ranking.
These products address broadly similar requirements. The descriptions focus on documented reasons a buyer might compare them with Samtools.
| Latest verified release | 1.25, released October 27, 2026 |
|---|---|
| License | MIT/Expat |
| Deployment | Locally installed command-line software |
| Supported file formats | SAM, BAM, CRAM |
| Operating systems | Linux, macOS, and Windows via MSYS2/MINGW64 build instructions |
| API | Command-line interface; HTSlib is the separate C library/API |
| Hosting | No vendor-hosted service documented |
| Free trial | Not applicable; software is available under an open-source license |
Verified installation, hosting, administration, or environment details that can affect implementation.
| Installation or hosting | Install locally from source with configure, make, and make install; platform package managers may also distribute builds. No vendor-hosted service is documented. Source ↗ |
|---|---|
| Operating systems | Installation documentation includes Linux distributions, macOS references, and Windows MSYS2/MINGW64 build instructions. Source ↗ |
Documented portability, standards, export, or switching considerations. No switching-cost score is shown unless the evidence supports one.
Processes SAM, BAM, and CRAM files and can convert among these formats. Compatibility and conversion settings should be checked against the required file format and reference sequence workflow.
Evidence source ↗A proprietary editorial score based on product capabilities, usability, value, performance, support and user sentiment evidence.
Official manuals document broad alignment-file processing, indexing, statistics, pileup, consensus, and stream-based workflows. It is free under the MIT/Expat license, but requires command-line and bioinformatics familiarity. No reliable public review-platform evidence was found; ratings are editorial assessments, not user scores.
Methodology v1.0. The assessment weighs feature coverage (25%), ease of use (15%), value for money (20%), performance (15%), support (10%) and user sentiment (15%), using researched product evidence and verified review evidence where available. It is a TechZella editorial assessment, not a direct user-review average.
Key claims are linked to the sources used to verify them. This evidence record is separate from third-party user ratings.
TechZella evaluates software using documented product capabilities, pricing information, usability and value considerations, independent user evidence where available, and competitive context. The assessment is an editorial review, not a hands-on test unless one is explicitly identified. Our editorial assessment is based on 4 documented sources.
The project manual describes conversion, sorting, merging, indexing, and regional retrieval for these formats.
View source ↗Verified 2026-11-11The project repository’s license file identifies the MIT/Expat license.
View source ↗Verified 2026-11-11The manual describes standard input/output and combining commands with Unix pipes.
View source ↗Verified 2026-11-11The project site describes Samtools and HTSlib as distinct packages and notes that Samtools uses HTSlib internally.
View source ↗Verified 2026-11-11The project release page lists version 1.25 and its release date.
View source ↗Verified 2026-11-11Answers begin with the clearest available response, followed by the context that helps you act on it.
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