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OrbStack

OrbStack (Orbital Labs) · Containers & virtualization

macOS application that runs Docker containers, Linux machines and a local Kubernetes cluster as a lighter replacement for Docker Desktop

ProprietaryFreemiumPaidLocalNov 2, 2026

ORCID

ORCID, Inc. · Research dissemination

Non-profit registry of persistent researcher identifiers (ORCID iDs) with user-controlled records, Public and Member APIs, OAuth sign-in and an annual CC0 public data file

Open sourceFreeEnterpriseNov 2, 2026

OSF (Open Science Framework)

Center for Open Science · Reproducibility & research software

Free, open-source research management platform from the Center for Open Science for projects, preregistrations, registries, preprint services and linking outputs across storage providers

Apache-2.0FreeSelf-hostedNov 2, 2026

Overleaf

Overleaf (Digital Science) · LaTeX & typesetting

In-depth entry

Collaborative online LaTeX editor with real-time co-editing, templates and reference-manager sync, available as a hosted service and an AGPL self-hosted edition

AGPL-3.0-onlyFreemiumPaidSelf-hostedNov 2, 2026

Overpass API

Roland Olbricht and the OpenStreetMap community · GIS & mapping

Read-only query service for OpenStreetMap data using the Overpass QL language, available on public instances or self-hosted

AGPL-3.0-onlyFreeOpen sourceSelf-hostedNov 2, 2026

OVHcloud

OVH Groupe SA · Cloud & hosting providers

European cloud and hosting provider offering dedicated bare-metal servers, public and hosted private cloud, VPS, domains and web hosting from data centers in Europe, Canada and elsewhere

ProprietaryPaidUsage-basedNov 2, 2026

pandas

pandas development team (NumFOCUS) · DataFrames & array computing

In-depth entry

The standard Python DataFrame library for labeled tabular data, time series and I/O to CSV, Excel, SQL, Parquet and more

BSD-3-ClauseOpen sourceFreeLocalNov 2, 2026

Pandera

Union.ai (Pandera project, created by Niels Bantilan) · Data quality & validation

Lightweight Python library for declaring and validating DataFrame schemas for pandas, Polars, PySpark and other backends, with type-hint style models

MITOpen sourceFreeLocalNov 2, 2026

Pandoc

John MacFarlane · LaTeX & typesetting

In-depth entry

Universal document converter that translates between Markdown, LaTeX, HTML, DOCX, EPUB, Typst, Jupyter and dozens of other formats, with citeproc and Lua filters

GPL-2.0-or-laterFreeOpen sourceLocalNov 2, 2026

Paperpile

Paperpile LLC · Citation management

Subscription reference manager that lives in the browser and Google Drive, with citation plugins for Google Docs and Word and mobile apps

ProprietaryPaidAcademicNov 2, 2026

pg-boss

Tim Jones (pg-boss project) · Messaging & queues

Node.js job queue that uses PostgreSQL tables and SKIP LOCKED for reliable background jobs, scheduling and retries without a separate broker

MITOpen sourceFreeLocalSelf-hostedNov 2, 2026

pgvector

Andrew Kane (pgvector project) · Vector databases

In-depth entry

PostgreSQL extension adding vector types, distance operators and HNSW/IVFFlat indexes for similarity search inside the database

PostgreSQLOpen sourceFreeSelf-hostedNov 2, 2026

Pinecone

Pinecone Systems, Inc. · Vector databases

Fully managed, proprietary vector database service with serverless indexes, namespaces, metadata filtering and integrated embedding and reranking

ProprietaryFreemiumUsage-basedNov 2, 2026

PlanSwift

ConstructConnect · Construction estimating & quantity surveying

Windows digital takeoff and estimating software from ConstructConnect that measures quantities on plans and prices them through assemblies and Excel

ProprietaryPaidLocalNov 2, 2026

Playwright

Microsoft · Testing & QA

In-depth entry

Microsoft's browser automation and end-to-end testing framework driving Chromium, Firefox and WebKit from one API in TypeScript, Python, Java and .NET

Apache-2.0Open sourceFreeLocalSelf-hostedNov 2, 2026

Plotly

Plotly Technologies Inc. · Data visualization

MIT-licensed interactive charting libraries for Python (plotly.py), JavaScript (plotly.js) and R, plus the Dash framework for analytical web apps

MITOpen sourceFreeLocalNov 2, 2026

PM2

Keymetrics (Unitech) · Infrastructure & provisioning

In-depth entry

Production process manager for Node.js and other long-running programs with cluster mode, log handling, restart policies and boot-time startup scripts

AGPL-3.0-onlyOpen sourceFreeLocalSelf-hostedNov 2, 2026

Podman

Podman Container Tools (LF Projects) · Containers & virtualization

Daemonless, rootless container engine with a Docker-compatible CLI, companion Buildah and Skopeo tools and a Podman Desktop GUI

Apache-2.0Open sourceFreeLocalSelf-hostedNov 2, 2026

Polars

Polars (Ritchie Vink and contributors) · DataFrames & array computing

In-depth entry

Rust-based DataFrame library with Python, Rust, Node and R bindings offering lazy query optimization, multithreading and Arrow-native memory

MITOpen sourceFreeLocalNov 2, 2026

Positron

Posit Software, PBC · Mathematical & statistical computing

Posit's multi-language data-science IDE built on Code OSS, with first-class R and Python consoles, variables and plots panes, under the Elastic License 2.0

Elastic-2.0FreeLocalNov 2, 2026

PostGIS

PostGIS Project Steering Committee (OSGeo) · GIS & mapping

In-depth entry

Spatial extension for PostgreSQL adding geometry, geography and raster types with indexing and hundreds of SQL functions

GPL-2.0-or-laterOpen sourceFreeSelf-hostedNov 2, 2026

PostgreSQL

PostgreSQL Global Development Group · Relational databases

In-depth entry

Open-source object-relational database server with a large extension ecosystem (PostGIS, pgvector, TimescaleDB) and broad SQL coverage

PostgreSQLOpen sourceFreeLocalSelf-hostedBroken

Postman

Postman, Inc. · API development & tooling

Commercial API platform for designing, testing, documenting and monitoring HTTP and other APIs through a desktop and web client with cloud-synced workspaces

ProprietaryFreemiumPaidLocalNov 2, 2026

Prefect

Prefect Technologies, Inc. · ETL/ELT & orchestration

Python workflow orchestration library and server where decorated functions become observable, retryable flows, with Prefect Cloud as hosted option

Apache-2.0Open sourceFreemiumLocalSelf-hostedRedirected

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