Google Cloud Partner

MongoDB to Firestore Migration

Move from MongoDB Atlas or DynamoDB to serverless Google Cloud Firestore. Both are NoSQL document databases, but the data models differ, so we re-design collections and queries to fit Firestore, migrate your documents, and rewire application access.

MongoDB to Google Cloud Firestore migration
Quick answer

Yes, you can migrate from MongoDB to Google Cloud Firestore. Codimite, a Google Cloud Partner, moves MongoDB Atlas and DynamoDB document data into Firestore. Because both are NoSQL but model data differently, the real work is re-designing your collections, documents and queries to fit Firestore, then migrating documents and rewiring application access. The result is a fully serverless, autoscaling database with real-time sync, scoped honestly up front.

Why migrate

Why teams move from MongoDB to Firestore

Truly serverless

No clusters to size, shard or patch, Firestore scales automatically with usage.

Real-time and offline

Built-in real-time listeners and offline sync for web and mobile, which MongoDB needs extra services to match.

Firebase & Google Cloud integration

Native ties to Firebase Auth, Cloud Functions, and the wider Google Cloud data stack.

Operational simplicity

Pay for what you use, with managed backups and replication, instead of running an Atlas cluster or DynamoDB capacity model.

Global scale

Multi-region Firestore for low-latency reads at scale without manual sharding.

What we migrate

What we migrate from MongoDB

MongoDB / DynamoDB object Migrates to Firestore Notes, NoSQL model differences
Collections & documents Firestore collections & documents Re-modeled, not copied; large embedded docs split into subcollections (1 MiB document limit)
Document data (BSON/JSON items) Firestore document fields Field types mapped; nested arrays/objects re-shaped to Firestore types
Indexes & queries Firestore indexes & queries Ad-hoc Mongo queries re-designed to Firestore's composite-index model
Application data access Firestore SDK calls Driver/SDK and access patterns rewritten to Firestore's API
Access control Firestore Security Rules / IAM Mongo roles re-mapped to Firestore rules and Cloud IAM
Stored logic / aggregation Cloud Functions / app layer Aggregation pipelines re-implemented; Firestore has no server-side aggregation parity

The data copy is the easy part. The effort is the data-model re-design and query rewrite to suit Firestore's strengths, we scope this explicitly in assessment so the estimate is realistic.

Our process

Our MongoDB to Firestore migration process

  1. 1

    Assess

    We review your collections, document shapes, query patterns and application access, and design the Firestore data model with an honest effort estimate.

  2. 2

    Convert schema

    We map collections, documents and subcollections, define Firestore indexes and Security Rules, and re-design queries that don't map directly.

  3. 3

    Migrate via DMS

    Documents are migrated in batches with continuous capture of changes where needed, keeping MongoDB live in parallel.

  4. 4

    Validate

    Document counts, sampled field checks and application tests confirm data integrity and that re-designed queries return correct results.

  5. 5

    Cutover

    A scheduled switch repoints the application to Firestore once changes are caught up, with a tested rollback path.

  6. 6

    Hypercare

    Query tuning, index optimization and support through stabilization.

Why Codimite

Why Codimite for your MongoDB migration

A Google Cloud Partner with 85+ Google Certified Specialists across data and application engineering: we re-design for Firestore's strengths, rewrite the data-access layer and queries, and prove correctness with document-count and field reconciliation.

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  • Google Cloud Partner. With 85+ Google Certified Specialists across data and application engineering.

  • NoSQL data-model expertise. We re-design for Firestore's strengths rather than forcing a MongoDB schema onto it.

  • Application-aware. We rewrite the data-access layer and queries, not just the data, so the app works correctly on Firestore.

  • Data-integrity verification. Document-count and field reconciliation proves nothing was lost or mis-mapped.

FAQs

MongoDB to Firestore migration FAQ

Can you migrate MongoDB to Firestore?

Yes, MongoDB Atlas and DynamoDB. Both are NoSQL document stores, but their data models differ, so we re-design collections and queries for Firestore, then migrate the documents and rewire access.

How are the NoSQL differences handled?

We map MongoDB collections/documents to Firestore collections, documents and subcollections, respect Firestore's document-size and indexing model, and re-design ad-hoc queries to Firestore's query API.

Does DynamoDB migrate too?

Yes. We map DynamoDB items and keys to Firestore documents and collections, re-designing access patterns to suit Firestore.

How long does it take?

Days to a couple of weeks for a small app; longer for larger estates, because the data-model re-design and query rewrite, not the data copy, drive the timeline.

What does it cost?

Pricing is scoped to data volume, model complexity and the application rewrite. Start with a free assessment for a fixed quote.

Ready to move to Firestore?

Codimite, a Google Cloud Partner, migrates MongoDB Atlas and DynamoDB to serverless Google Cloud Firestore with honest NoSQL data-model re-design, document migration and rewired application access. Start with a free quote.

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