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Open source alternatives to Sendmail

50 open source Utilities apps to use instead, best rated first.

Top picks

  1. B

    Builder.io

    Launch

    Builder.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

  2. E

    Elasticsearch

    Launch

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

  3. H

    Handy

    Launch

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

  4. H

    Hermes Agent

    Launch

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

  5. I

    InfluxDB

    Launch

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

  6. K

    Kitty

    Launch

    High-performance terminal emulator with GPU acceleration, graphics support, and advanced scripting capabilities for developers and system administrators.

More Utilities apps

See all
7
L

Localsend

Share files to nearby devices. Free, open source, cross-platform

Launch
8
M

Mermaid

Create flowcharts, sequence diagrams, Gantt charts, and more

Launch
9
N

Neovim

Hyperextensible Vim-based text editor

Launch
10
S

Syncthing

Syncthing replaces proprietary sync and cloud services

Launch
11
P

Podman

A tool for managing OCI containers and pods

Launch
12
H

Hash

Shows the hash values of entered text using different algorithms

Launch
13
J

Jekyll

Jekyll is a blog-aware static site generator in Ruby

Launch
14
R

Redis Insight

Official Redis tool for browsing, debugging, and visualizing data

Launch
15
R

restic

restic is a backup program that is fast, efficient and secure

Launch
16
B

BentoPDF

Powerful, privacy-first, client-side PDF toolkit

Launch
17
M

Mole

Native Mac maintenance utility for cleanup, app management, disk analysis

Launch
18
K

Krita

Krita is a cross-platform application for creating digital art files

Launch
19
M

Mkdocs

Project documentation with Markdown

Launch
20
F

FreeTube

An Open Source YouTube app for privacy

Launch
21
C

copyparty

Portable file server with accelerated resumable uploads, deduplication, WebDAV

Launch
22
O

ownCloud

ownCloud, your file platform

Launch
23
T

Tabby

A terminal for a more modern age

Launch
24
O

OnionShare

Securely and anonymously share a file of any size

Launch
25
A

Avalonia

Develop Desktop, Embedded, Mobile and WebAssembly apps with C# and XAML

Launch
26
D

Docsify

Create beautiful, organized documentation and collaborate effortlessly

Launch
27
G

ghidra

A software reverse engineering

Launch
28
K

Kubernetes CLI

Automate, monitor, scale, and configure applications effortlessly

Launch
29
C

Clash Verge Rev

A modern GUI client based on Tauri, designed to run in Windows

Launch
30
V

Vaultwarden

Lightweight Bitwarden server API implementation written in Rust

Launch
31
R

rclone

Rclone is a command line program to sync files and directories

Launch
32
B

BitWarden

Best Password Manager for Business, Enterprise & Personal

Launch
33
B

Brave

A secure web browser that blocks ads and trackers, protects privacy

Launch
34
C

CasaOS

CasaOS is an open-source personal cloud system

Launch
35
D

Dragonfly

Dragonfly is a high-performance, Redis-compatible in-memory data store

Launch
36
G

GPT4All

GPT4All runs open-source language models locally on Windows, macOS

Launch
37
K

KeepassXC

KeePassXC Password Manager

Launch
38
L

Lemmy

A federated and open alternative to Reddit in Rust

Launch
39
S

SearXNG

Self-hostable metasearch engine

Launch
40
S

ShareX

ShareX is a free, open-source program

Launch
41
T

Tailscale

Deploy a modern WireGuard-based VPN with zero configuration

Launch
42
Z

Zen Browser

A Firefox-based browser offering enhanced privacy, split views

Launch
43
G

Greenshot

Greenshot is a light-weight screenshot software tool

Launch
44
D

DokuWiki

A popular self-hostable wiki software with a large number of plugins

Launch
45
M

Maccy

Lightweight clipboard manager for macOS

Launch
46
P

pencil

Free, open-source tool for making diagrams and GUI prototyping

Launch
47
C

Create React App

Set up a modern web app by running one command

Launch
48
H

HowToCook

Programmer's guide about how to cook at home

Launch
49
B

Bitcoin Core

Bitcoin Core integration/staging tree

Launch
50
C

ConvertX

Online file converter which supports over a thousand different formats

Launch

About Sendmail

S

Sendmail

Message transfer agent (MTA). Sendmail C/deb

Proofpoint offers cloud-based cybersecurity solutions for email security, data loss prevention, and compliance, protecting against threats and ensuring secure communication.

View SendmailAll Utilities apps
Price
Free
Category
Utilities
Website
proofpoint.com