
Apache HTTP Server
The world's most used web server software
- Linux
- Windows
- macOS
1 alternative · 5 questions answered
The directory
632 products matching your filters. Each one described on the same fields, so two tools can be read against each other rather than against their own marketing.
Showing 25–48 of 632

The world's most used web server software
1 alternative · 5 questions answered

Open-source distributed event streaming platform
2 alternatives · 4 questions answered

Java ERP and e-commerce framework from the Apache Foundation, sold as a toolkit not a product
3 alternatives · 4 questions answered

Real-time distributed OLAP datastore for analytics
4 alternatives · 4 questions answered

Cloud-native messaging and streaming with separated storage
3 alternatives · 3 questions answered

Enterprise search platform built on Apache Lucene
3 alternatives · 3 questions answered

The machine learning library inside Apache Spark, for data that will not fit on one machine
4 alternatives · 5 questions answered

All-in-one platform for API design, documentation, testing, and mocking
2 alternatives · 3 questions answered

Open source spreadsheet database with an API first design and an embeddable widget system
3 alternatives · 5 questions answered

Create cross-platform 2D games and apps
4 alternatives · 1 question answered

Open source mobile automation framework hosted under the OpenJS Foundation with copyright assigned to the foundation
3 alternatives · 3 questions answered

Multi-model database for graph, document, and search
4 alternatives · 2 questions answered

Rolling-release Linux distribution you assemble yourself
1 alternative · 3 questions answered

Free and open source digital preservation system
2 alternatives · 3 questions answered

Open source archives information management application
4 alternatives · 3 questions answered

Unified data protection for all workloads
2 alternatives · 3 questions answered

GPL workstation whose source is free and whose prebuilt binaries are paid
3 alternatives · 4 questions answered

Open-source 3D game engine integrated with Blender
4 alternatives · 1 question answered

Advanced Monte Carlo ray tracing renderer
4 alternatives · 3 questions answered

Animated sprite editor and pixel art tool
4 alternatives · 3 questions answered

Runs Terraform plan and apply from pull request comments, self-hosted and free
3 alternatives · 4 questions answered

One-time-purchase writing and book formatting that runs on Windows and Linux, not just Mac
3 alternatives · 3 questions answered

Free and open-source multi-track audio editor and recorder
2 alternatives · 3 questions answered

Open-source authentication and two-factor portal for reverse proxies
2 alternatives · 3 questions answered
Head to head
Pairings from this slice of the directory, each one checked by two reviewers who agreed a buyer would weigh the two against each other.
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How this works
Pricing, platforms and feature lists are taken from each vendor's own pages. Limitations, answered questions and alternatives are researched separately and carry a source URL on the page that states them. Every product is described on the same fields, so two tools can be read against each other rather than against their own marketing.
Because we did not collect any. Softwr hosts no reviews, and a rating aggregated from somewhere else is not ours to publish as though it were an assessment we made. What is shown instead is what a tool costs, where it runs, and what it is concretely bad at.
A researcher proposes them, then two independent reviewers judge one question each: would a buyer evaluating this product seriously consider that one instead. 225 of 1,841 candidates failed and were deleted, including a font inspector matched to a dark mode extension. Only pairings that survived both rounds are published.
Not to be listed. A vendor can buy a place in the results on the home page, on a category listing or on the catalogue, and where they do the result carries a Sponsored label. Everything not carrying that label is ordered on the same criteria as everything else, and a paid place never changes where an unpaid one lands: the editorial order flows around it. Where a link earns a commission that is disclosed on the page carrying it.
Prices and plan limits move without notice, so treat anything with a number on it as a starting point and check the vendor before you buy. Where a claim could go stale it carries the source it came from, which is the fastest way to tell.
Something missing here?
Anyone can submit a tool. A person reads every submission, checks the pricing against the vendor’s own page, and nothing is published until it passes.