Open Source Alternatives
  • Alternatives
  • Categories
    Categories by size882 projects
    • Developer Tools461
    • AI & Machine Learning404
    • Web Development196
    • Business & Productivity191
    • Communication & Collaboration126
    • Security & Monitoring126
    • IT Management123
    • Product & Project Management106
    • Cloud & Hosting105
    • Data & Analytics104
    Browse all 21 categoriesLLMOps & AI Tooling, Design & Creative and 9 more
  • Blog
  • Advertise
SearchNotion, Slack, password manager.../
Submit
Open Source Alternatives
  • Alternatives
    • Developer Tools461
    • AI & Machine Learning404
    • Web Development196
    • Business & Productivity191
    • Communication & Collaboration126
    • Security & Monitoring126
    • Browse all 21 categories
  • Blog
  • Advertise
Submit your project

New open source projects by email

The projects we add and every new guide. Free, unsubscribe any time.

Open Source Alternatives LogoOpen Source Alternatives

Handpicked Open Source Alternatives to Paid Softwares

Product

  • Categories
  • Tag
  • Advertise

Resources

  • Blog
  • Collection
  • Submit

Company

  • Privacy Policy
  • Terms of Service
  • Refund Policy
  • Sitemap

Alternatives

  • Claude Code
  • Jira
  • Notion
  • Slack
  • Linear
  • Wispr Flow
  • All alternatives
© 2026 Open Source Alternatives. All rights reserved.
Open SourceAlternatives
Home/Categories/Business & Productivity/Arcmark
icon of Arcmark

Arcmark

Open source alternative to Anybox, Raindrop.io and Pinboard

  • 494 stars
  • MIT
  • Updated this year
  • Last commit 131 days ago

Last verified Oct 14, 2026

A native macOS bookmark manager that integrates with any browser as a sidebar.

Visit websiteGitHub494 stars
image of Arcmark
TL;DR

Arcmark is a native macOS bookmark manager that attaches as a sidebar beside browser windows. It replaces browser-locked bookmark organization for users who want Arc-style workspaces across Chrome, Safari, Brave, Arc, and other browsers. MIT licensed.

Read the full breakdownHide the full breakdownWho it is for, how it works, trade-offs and the FAQ
who it's for

Who Arcmark is for#

Mac users leaving Arc

Arcmark fits users who like Arc's sidebar organization but want to use Chrome, Safari, Brave, or another browser.

Skip if:

You need bookmark sync across Windows, Linux, and mobile devices.

Local-first bookmark organization

The local JSON storage model helps users keep bookmark data inspectable and outside a hosted bookmark service.

Skip if:

You want team collaboration, hosted sync, or browser-extension based sharing.

the problem

The problem it solves#

Browser bookmarks are usually trapped inside one browser's sidebar and organization model. That becomes frustrating when a user wants Arc-style workspace organization without staying inside Arc or manually duplicating bookmarks across browsers.

Power users also need bookmarks to stay local and searchable. A simple browser folder tree can break down when links need to be grouped by workspace, moved quickly, and accessed beside whichever browser is active.

how Arcmark solves it

How it solves it#

Browser-attached sidebar

Arcmark can float alongside supported browser windows and follow them across spaces while still offering a standalone window mode.

Workspace organization

Users can organize bookmarks into multiple workspaces with custom colors, nested folders, and drag-and-drop movement.

Local JSON storage

The README says bookmarks are stored in a single local JSON file under the user's Application Support directory.

strengths · trade-offs

Strengths and trade-offs#

Strengths

  • Browser-independent organizationArcmark is useful for people who want Arc-like sidebar organization while keeping freedom to use another browser.
  • Native macOS feelBecause it is built with Swift and AppKit, Arcmark can behave like a focused local macOS utility rather than a web app.

Trade-offs

  • -Mac-only utilityArcmark targets macOS and requires accessibility permissions for browser attachment. Cross-platform teams should not treat it as a shared bookmark platform.
tech stack · detected from GitHub

What it's built on#

Languages
JavaScriptSwift
frequently asked

FAQ#

What browsers does Arcmark support?

The README lists Chrome, Arc, Safari, Brave, and similar browser windows for sidebar attachment.

Where does Arcmark store bookmarks?

Arcmark stores bookmarks in a local JSON file in the user's macOS Application Support directory.

What license does Arcmark use?

GitHub metadata reports MIT licensing for Arcmark.

also worth a look

Similar open-source tools#

rakazo

Featured

Alternative toGrok Bot

AI teammates you own: your keys, your model, your machine.

  • 4,904 GitHub stars
  • Apache-2.0Licence Apache-2.0

Mole

Alternative toCleanMyMac X

Mac cleaner, app uninstaller, disk analyzer, and system monitor

  • 72,205 GitHub stars
  • GPL-3.0Licence GPL-3.0

Plexo

Alternative toInternet Download Manager

Parallel-download manager combining multiple network connections

  • 4,835 GitHub stars
  • MITLicence MIT

AutoCua

Alternative toOpenAI Operator

Computer-use agent: desktop, browser, terminal, and iOS automation.

  • 191 GitHub stars
  • MITLicence MIT

Windows

Alternative toMagnet

Free window manager: snap by shortcut or drag-to-edge, no internet.

  • 2 GitHub stars
  • MITLicence MIT

Voice Assistant

Alternative toSuperwhisper

Voice interface for Claude Code with local Whisper and spoken answers

  • 2 GitHub stars
  • MITLicence MIT
by category

Open source tools in these categories#

191

Business & Productivity

OpenClaw, Excalidraw, RustDesk462

Developer Tools

REA (Reverse Engineer Anything), superpowers, Skills for Real Engineers

Featured

Omnara

Alternative toCClaude Managed Agents

Open-source agent deployment API. Self-host or use Omnara Cloud.

  • 2,957 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #AI Agents

rakazo

Alternative toGrok Bot

AI teammates you own: your keys, your model, your machine.

  • 4,904 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #AI Agents

Inbox Zero

Alternative toSuperhuman

AI email assistant that drafts replies and clears your inbox

  • 12,712 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #Email
Feature your project

New open source projects by email

The projects we add and every new guide. Free, unsubscribe any time.

Find open source alternatives to paid software

/
  • Claude Code to OpenCode
  • Jira to Windshift
  • Notion to AppFlowy
  • Slack to Mattermost
  • Linear to GitLab
  • Wispr Flow to Handy
  • CapCut to Concat
  • Grok Bot to rakazo
  • Superhuman to Inbox Zero
  • Airtable to AITable
  • Muse to OpenClaw
  • GitHub Copilot to Cline
  • Datadog to Netdata
  • Microsoft Teams to Rocket.Chat
  • Pinecone to Qdrant
  • Zapier to n8n
  • Devin AI to OpenHands
  • Firebase to Supabase
  • 1Password to KeePassXC
  • Confluence to Docmost
  • Contentful to Strapi
  • Adobe Premiere Pro to Shotcut
  • ChatGPT to AnythingLLM
  • LangSmith to Langfuse
  • Claude Code to OpenCode
  • Jira to Windshift
  • Notion to AppFlowy
  • Slack to Mattermost
  • Linear to GitLab
  • Wispr Flow to Handy
  • CapCut to Concat
  • Grok Bot to rakazo
  • Superhuman to Inbox Zero
  • Airtable to AITable
  • Muse to OpenClaw
  • GitHub Copilot to Cline
  • Datadog to Netdata
  • Microsoft Teams to Rocket.Chat
  • Pinecone to Qdrant
  • Zapier to n8n
  • Devin AI to OpenHands
  • Firebase to Supabase
  • 1Password to KeePassXC
  • Confluence to Docmost
  • Contentful to Strapi
  • Adobe Premiere Pro to Shotcut
  • ChatGPT to AnythingLLM
  • LangSmith to Langfuse