Obsidian can replace Notion, Todoist, Trello, Fantastical, TextExpander, and backup tools if you use the right plugins. This guide breaks down 6 free Obsidian plugins that can quietly save you hundreds of dollars a year. Most people think productivity means paying for better apps. In reality, Obsidian can replace most of them for free if you know which plugins to use.
That is the part almost nobody talks about: the core app is free, the plugin ecosystem is huge, and a small setup can quietly replace a stack of subscriptions.
If you already pay for note apps, task apps, calendar apps, and automation tools, this is where the savings start adding up.
Do you understand the real win is not just money. It is having your notes, tasks, planning, and content in one system instead of scattered across five different apps. Obsidian gives you that control, and the right plugins make it feel like a personal productivity OS. Without any further delay I will jump straight to the Obsidian plugins I feel could help you a lot when it comes to cost savings.
First here is the link to Obsidian plugins - https://obsidian.md/plugins
1. Dataview replaces Notion databases
Dataview Plugin
🔗https://obsidian.md/plugins?id=dataview
Dataview turns your notes into a queryable system. Instead of manually building tables and dashboards, you can pull information from frontmatter, tags, links, and note properties automatically. That means you can create pages like “Active Projects,” “Reading Queue,” or “Content Ideas” without rebuilding the structure every time.
This is the closest thing Obsidian has to Notion-style databases, but with more flexibility for people who prefer plain Markdown. If you keep recurring information in your notes, Dataview saves a lot of manual sorting and copy-pasting.
Best for: project tracking, content pipelines, book notes, research notes.
2. Tasks replaces Todoist
Tasks
🔗https://obsidian.md/plugins?id=obsidian-tasks-plugin
Tasks makes Obsidian into a real to-do system. You can write tasks inside your notes, add due dates, priorities, recurring rules, and filters, then collect them into one dashboard. Instead of managing tasks in a separate app, your to-dos live where your work lives.
The big advantage is context.
If a task belongs to a project note, it stays attached to that project note. You do not have to jump between an app for tasks and an app for reference material.
Best for: daily planning, project checklists, recurring routines.
3. Kanban replaces Trello
Kanban
🔗https://obsidian.md/plugins?id=obsidian-kanban Kanban gives you a visual board inside Obsidian. You can move cards across columns like Ideas, In Progress, Review, and Done, just like Trello, but without leaving your vault.
That makes it useful for people who think visually but want everything connected to notes.
This works especially well for creators, freelancers, and solo founders.
You can keep the board next to your research, drafts, and planning docs instead of splitting work across separate tools.
Best for: content calendars, pipeline management, simple project boards.
4. Calendar replaces Fantastical
🔗 https://obsidian.md/plugins?id=calendar
The Calendar plugin gives you a clean date-based way to navigate daily notes. It is simple, but that is exactly why it works. Instead of paying for a polished calendar app just to open daily entries, you get fast access to your notes by day.
Calender
Best for: journaling, daily notes, planning by date, review habits.
5. Templater replaces TextExpander
🔗 https://obsidian.md/plugins?id=templater-obsidian
Templater is one of the most underrated Obsidian plugins. It lets you create reusable templates with variables, dates, prompts, and logic. That means you can automate note creation and avoid rewriting the same structure over and over again.
It is especially powerful when combined with daily notes and project templates.
Best for: meeting notes, content outlines, repeated workflows, note automation.
6. Obsidian Git replaces manual backups
🔗 https://obsidian.md/plugins?id=githobs
Obsidian Git syncs your vault through Git, which means your notes can be versioned, backed up, and restored properly. For people who care about data safety, this is a huge upgrade over hoping a sync app behaves.
Instead of manually exporting or trusting a single device, you get a real change history. If you ever mess up a note, delete something important, or want to see how a draft evolved, Git gives you that protection for free.
Best for: backups, version history, multi-device safety, long-term note storage.
Why this matters
A lot of people pay for productivity apps because they want three things: structure, speed, and reliability.
Obsidian can cover all three if you set it up well.
Dataview gives you structure, Templater and Tasks give you speed, and Git gives you reliability.
I feel that the hidden advantage is that all of this lives in one vault. That means your planning, writing, reading, and tracking all feed the same system instead of fragmenting across subscriptions.
For many users, that is worth far more than the software bill they are trying to avoid.
Who should use this setup
This stack is best for:
- Solo creators who manage content, ideas, and publishing.
- Freelancers who track client work and deliverables.
- Students who need notes, deadlines, and reading lists.
- Founders who want one system for projects and tasks.
- Anyone tired of paying for five apps that all do one part of the job.
If you are already using Obsidian only as a note app, you are leaving most of its value unused.
The plugin ecosystem is what turns it into a serious productivity system.
A simple starter stack
If you want the shortest possible version, start with just these:
- Tasks for to-dos.
- Dataview for dashboards.
- Templater for automation.
- Calendar for daily notes.
- Obsidian Git for backups.
- Kanban for visual planning.
That alone is enough to replace a surprising amount of paid software. Hope you liked the article :)
I’m Kanika (@KanikaBK), specializing in AI tools, emerging trends, and niche applications.
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