Notion to Markdown Migration: Check Links, Attachments, and Data Before You Switch

Moving notes out of Notion can look simple: export, import, and resume work. The difficult part is what breaks quietly—a linked project page that points nowhere, a missing document in a meeting record, or a database view whose meaning did not survive an export.

A careful Notion to Markdown migration treats the export as the start of an audit, not proof of success. Use this checklist whether your destination is an ordinary Markdown folder or a local-first knowledge workspace such as Phasoric.

1. Inventory what matters before exporting

Choose a representative project containing nested pages, internal links, images, attachments, and a database-backed view. Record what must remain usable after migration. Separate four kinds of information:

• Content: headings, body text, checklists, and basic tables.
• Relationships: cross-page links, hierarchy, and attachment references.
• Properties: dates, labels, identifiers, and structured fields.
• Behavior: filtered database views, formulas, comments, permissions, and automations.

The first three may have portable representations. The fourth often depends on application-specific behavior. Decide which features require manual rebuilding instead of expecting a static Markdown export to recreate them.

2. Export Markdown and CSV, then preserve the archive

Choose Notion's Markdown & CSV export option where available. Export a full project or workspace section so linked pages and attachment directories are included. Download the archive, keep an unchanged backup, and extract a working copy.

Phasoric's documented Notion source is an unzipped Markdown & CSV export folder. In Phasoric, open Settings → Migration, then select the complete extracted directory. Do not assume an importer's folder picker accepts the original ZIP.

Record the export date. If you run another export later, some differences may reflect legitimate source changes rather than migration errors. Keep the original as rollback evidence until you finish validating the destination.

3. Inspect the files before you trust an importer

Open several exported Markdown pages in a plain-text editor. Check headings, checklists, and links. Inspect CSV files separately: they may preserve database rows and properties, but they are not live Notion database views.

Look for image and document folders, URL-encoded names, duplicated titles, and unexpectedly empty pages. A link that looks correct in Markdown does not prove its destination was included in the export.

Handle the archive as potentially sensitive data. Do not upload private source exports to public test repositories or assume that a conversion service has appropriate permissions to process them.

4. Test three kinds of internal link

Links are a common source of subtle failures. A reference may include a generated identifier, encoded spaces, or a relative path. Renaming a destination file during import can break an otherwise valid reference.

Test a link between sibling pages, one from a deeply nested page to its parent, and one pointing to a file in another folder. After import, click each link and verify the opened destination. Merely seeing underlined text is not enough.

The Phasoric Notion importer implements path normalization and link rewriting. Its migration preflight reports resolved and unresolved references. Those checks are useful, but they are not a guarantee that every original link type will survive. Investigate important unresolved links manually.

5. Verify attachments as actual files

Select a page containing an image, a PDF, and another important attachment type if available. Compare the reference in the note with the exported file. After importing, open each attachment and confirm it is the correct version.

Attachment counts can hide problems. Two references may point to one file, and a present file may be linked from the wrong page. Maintain a few source-to-destination examples for comparison.

If offline access matters, test an imported sample without a network connection. A remote preview is not proof that an attachment is stored locally. Document any externally hosted files before you retire the source workspace.

6. Decide what to do with database properties

Markdown is portable and human-readable, but it is not an identical replacement for every Notion feature. Notion database behavior, comments, permissions, automations, and every block type cannot be represented identically in Markdown. Phasoric's Notion migration overview explicitly identifies those limits.

Map essential properties to frontmatter, tags, or another structured representation when appropriate. Retain CSV exports for fields that need separate analysis. If a view drives a critical process, document its filters and calculation rules before leaving Notion.

The key distinction is preserving data versus preserving workflow behavior. A successful file conversion does not automatically replace a working approval or task system.

7. Run the migration preflight

Open Settings → Migration in Phasoric, choose the extracted folder, and inspect the plan before committing. The Migration Wizard guide documents checks for unresolved links, attachment references, property parse failures, exact-content duplicates, path collisions, warnings, and a bounded quality score.

Investigate high-value warnings first. A missing reference in a discarded scratch note is less important than a missing contract attachment in an active project. Do not optimize for the score while ignoring the evidence underneath it.

If the preview omits a crucial source format, test a smaller subset and resolve the issue before migrating everything.

8. Handle duplicate content and path collisions separately

Two pages may share a visible title while containing different information. Conversely, two differently named notes can contain identical text. These are separate problems: path collisions and exact-content duplicates.

Phasoric offers distinct policies for existing paths and exact duplicates. Favor preserving existing material or creating safe copies until conflicts have been reviewed. Avoid blanket overwrites in an established destination vault.

If you retry an interrupted import, check whether part of the previous attempt already completed. Re-importing the entire archive without reviewing the resume state can create unnecessary duplication.

9. Understand checkpoints and trust status

Large transfers may stop when a browser tab closes or a write fails. Phasoric's documented wizard uses local checkpoints and offers Resume from the last committed item. Abandoning a checkpoint does not remove items that were already committed.

Import completion is not the same as factual verification. New notes enter Phasoric's trusted knowledge ledger as Draft, not automatically Verified. Replacing tracked content may set it to Changed for later review.

Local import also does not imply that a cloud-synced destination was overwritten. Existing remote paths may require separate reviewed confirmation.

10. Validate with a representative sample

After import, select ten pages from different project areas. Compare source and destination titles, important body text, properties, links, and attachments. Open the files that matter operationally.

Search for two distinctive phrases and confirm that each result opens the intended note rather than a duplicate. Reopen the destination application, then repeat a small portion of the test. If offline reading matters, verify it explicitly.

Download the Migration Wizard's versioned JSON report. It records planned checks and actual note, attachment, warning, Draft, and Changed counts. Compare those totals with your source inventory, and investigate material discrepancies before declaring success.

11. Keep a rollback window

Do not immediately cancel the original workspace. Use the migrated project for real tasks during a defined validation period. Log any broken links, missing attachments, unsupported properties, or workflow differences.

Only after the checks pass should you redirect bookmarks and team instructions. Store the original export securely even after you stop using the old service. It may contain confidential documents, and backup access deserves the same care as production access.

If a feature cannot be reconstructed faithfully, keep it in its original tool temporarily or redesign the process deliberately. A migration succeeds when knowledge remains usable, not when a progress bar reaches 100%.

Start with one project

Export a small but representative project, review the preflight, test key links and attachments, and keep the original source untouched. This is the fastest way to discover the real limits of a migration without placing your entire knowledge history at risk.

Explore Phasoric's migration preview, Notion migration guide, and step-by-step Migration Wizard documentation. Feature availability and import limits can vary by plan and environment.