Open source alternatives to nomacs
50 open source Utilities apps to use instead, best rated first.
Top picks
- B
Builder.io
LaunchBuilder.io is a visual headless CMS and development platform that lets teams create, manage, and optimize web pages without constant developer involvement. It integrates with any tech stack (React, Next.js, Vue, etc.) and includes AI-powere
- E

Elasticsearch
LaunchElasticsearch is an open-source, RESTful search engine designed for scalability, reliability, and easy management.
- H

Handy
LaunchCross-platform desktop app that transcribes your voice into any text field using a keyboard shortcut, with all processing done locally on your machine.
- H

Hermes Agent
LaunchCross-platform desktop agent from Nous Research that connects to Telegram, Discord, Slack, WhatsApp, and more, with persistent memory, scheduling, and isolated sandboxing.
- I

InfluxDB
LaunchInfluxDB handles high-velocity, high-resolution time series data at scale, built for telemetry, edge devices, IoT, and physical AI workloads.
- K

Kitty
LaunchHigh-performance terminal emulator with GPU acceleration, graphics support, and advanced scripting capabilities for developers and system administrators.
More Utilities apps
About nomacs
nomacs
nomacs is an image viewer
nomacs is a free, open source image viewer, which supports multiple platforms. You can use it for viewing all common image formats including RAW and psd images. nomacs features semi-transparent widgets that display additional information such as thumbnails, metadata or histogram. It is able to browse images in zip or MS Office files which can be extracted to a directory.
- Price
- Free
- Made by
- nomacs
- Category
- Utilities
- Website
- nomacs.org


