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Kosshi Outliner

Alternatives to Kosshi Outliner

50 Productivity apps to use instead, best rated first.

Top picks

  1. J

    Jobtrackr

    Launch

    Jobtrackr helps job seekers keep their applications, interviews, documents and follow-ups organised in one place. Track each application from submission to offer, schedule interviews, manage your next steps and see how your search is progr

    FreeRated 5.0

  2. n

    nuza

    Launch

    Nuza is a simple, lightweight Markdown note-taking app for people who want a fast, focused alternative to apps like Obsidian. It is built for developers, writers, students, and anyone who prefers owning their notes as plain files rather th

    FreeRated 5.0

  3. I

    InviteVia

    Launch

    InviteVia is a digital event invitation platform that lets you create and share elegant invitations in seconds. Send a single shareable link to guests — no sign-ups, downloads, or complicated accounts required. Perfect for weddings, parties

    Rated 5.0

  4. D

    Design Toolkit

    Launch

    Hover any element to see its box model, spacing, colors and fonts. Measure pixel distances, preview every screen size, audit the page and hand its animations to your AI. One extension, on any website.

    Rated 4.0

  5. L

    Logseq

    Launch

    Local-first, open-source knowledge management tool with bidirectional linking, outlines, flashcards, PDF annotations, and whiteboards for building a connected second brain.

    Open source

  6. Notion

    Launch

    One workspace for your notes, docs, wikis and projects. Build anything from a meeting note to a company OS.

    Free

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7
F

Flowise

Build AI agents visually, an open source agentic systems development platform

Launch
8
F

Formbricks

Build forms and receive & manage submission data in one platform

Launch
9
J

Jitsi

Free Video Conferencing Software for Web & Mobile

Launch
10
M

Metabase

Business intelligence software

Launch
11
P

Plane

AI-native project management

Launch
12
S

Signal

Encrypted, secure chat and video calls

Launch
13

Slack

Where work happens

Launch
14

Miro

The collaborative whiteboard

Launch
15

Loom

Async video messaging

Launch
16

Linear

The issue tracker you'll enjoy using

Launch
17
A

Automatisch

Open Source Zapier Alternative

Launch
18
G

Grist

Spreadsheet Software to End Data Chaos

Launch
19
H

Home Assistant

Open source home automation that puts local control and privacy first

Launch
20
K

Karakeep

Save, Organize & Tag with AI

Launch
21
M

Mattermost

Collaboration Platform for Mission Critical Work

Launch
22
M

Medusa

Headless e-commerce platform

Launch
23
N

Nextcloud

Open source content collaboration platform

Launch
24
N

Notesnook

Open source zero knowledge private note taking

Launch
25
O

Odoo

Open Source ERP and CRM

Launch
26
P

Paperless-home

Paperless-home hosts your personal document management system: Paperless

Launch
27
P

Plausible

Simple, privacy-friendly Google Analytics alternative

Launch
28
P

Proton Mail

Free secure email account service provider with built-in end-to-end encryption

Launch
29
R

RustDesk

Open source virtual / remote desktop infrastructure for everyone

Launch
30
S

Saleor

Composable, Open Source, Headless Ecommerce Platform

Launch
31
T

Tuta

Secure email for everybody. Open Source

Launch
32
U

Umami

Privacy-First Analytics Platform

Launch
33
C

changedetection.io

Stay up-to-date with web-site content changes

Launch
34
H

Huginn

Build agents that monitor and act on your behalf

Launch
35
G

GoAccess

Real-time web log analyzer and interactive viewer that runs in a terminal

Launch
36
M

Mailspring

A beautiful, fast and maintained fork of Nylas Mail

Launch
37
D

Drone

Self-service CI platform for busy teams

Launch
38
T

Thunderbird

Thunderbird is a free email application that’s easy to set up and customize

Launch
39
K

Kimai

Track work time and print out a summary of your activities on demand

Launch
40
S

Spree Commerce

Spree is a complete, modular & API-driven open source e-commerce solution

Launch
41
G

Glance

Highly customizable dashboard that puts all your feeds in one place

Launch
42
A

Ansible CLI

Automate tasks, streamline workflow, and securely manage IT systems

Launch
43
A

Alacritty

Modern cross-platform terminal emulator

Launch
44
B

Bagisto

Headless e-commerce platform

Launch
45
B

Better Auth

A comprehensive authentication framework offering email/password

Launch
46
E

Element

Secure collaboration and messaging

Launch
47
E

ERPNext

Open-source ERP solution offering modules

Launch
48
F

Fandom

The entertainment site where fans come first

Launch
49
G

GitButler

A Git client for simultaneous branches on top of your existing workflow

Launch
50
L

LanguageTool

Open source grammar, style and

Launch

About Kosshi Outliner

K

Kosshi Outliner

Kosshi is a fast, native outliner

Kosshi is a fast, native outliner. Simple and smooth on large outlines. Available on Mac, iPhone, and iPad — one purchase covers all three. Outliner Hit Tab to indent and build a hierarchy. Collapse what you don't need, drag to move things around. Zoom In / Zoom Out Zoom into any row and only its contents are shown. Breadcrumbs tell you where you are, and you can jump home anytime.

View Kosshi OutlinerAll Productivity apps
Made by
Junichi Sato
Category
Productivity
Website
kosshi.app