Best sql.js Alternatives in 2026
The top sql.js alternatives are SQLite, H2 Database Engine and Firebird: 15 embedded databases our editors would look at instead of sql.js, in our ranking order.
sql.js: A focused open-source choice for running SQL over in-memory data in browsers. Where it falls short: databases are held in memory by default.
Switching from sql.js? For most embedded databases buyers the best sql.js alternative is SQLite, built for general-purpose embedded SQL applications.
Why People Look for a sql.js Alternative
- Databases are held in memory by default
- Its primary platform focus is browser-based applications
- File persistence requires the documented Node.js or import/export workflows
Quick Picks by What You Need
- Best overallSQLite9.4
General-purpose embedded SQL applications
Visit SQLite - Best free optionSQLite9.4
Has a free plan
Visit SQLite
All 15 sql.js Alternatives, Ranked
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
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Best forGeneral-purpose embedded SQL applications
- Better than sql.js:
- Editor score 9.4 vs 6.4
A capable, zero-configuration SQL engine for applications that need local embedded storage.
9.4/10★★★★★Visit SQLite -
Best forJava applications needing embedded SQL
- Better than sql.js:
- Editor score 9.1 vs 6.4
A flexible embedded SQL engine for Java applications, with self-hosted server options.
9.1/10★★★★★Visit site -
Best forEmbedded SQL with replication and HA
- Better than sql.js:
- Editor score 9.0 vs 6.4
A self-hosted SQL database with replication, backups, and multiple deployment architectures.
9.0/10★★★★☆Visit Firebird -
Best forFeature-rich embedded SQL systems
- Better than sql.js:
- Editor score 8.8 vs 6.4
A feature-rich, self-hosted SQL database for Java applications.
8.8/10★★★★☆Visit HSQLDB -
Best forHigh-throughput embedded key-value workloads
- Better than sql.js:
- Editor score 8.5 vs 6.4
A focused open-source engine for high-throughput embedded key-value workloads.
- Encryption
8.5/10★★★★☆Visit RocksDB -
Best forSQLite-compatible apps needing replication
- Better than sql.js:
- Editor score 8.4 vs 6.4
SQLite-compatible embedded storage with replication, server access, and encryption.
- Data synchronization
- Encryption
8.4/10★★★★☆Visit libSQL -
Best forOffline-first web document applications
- Better than sql.js:
- Editor score 8.2 vs 6.4
A focused open-source document database for local storage and CouchDB-compatible synchronization.
8.2/10★★★★☆Visit PouchDB -
Best forPortable Go key-value applications
- Better than sql.js:
- Editor score 8.1 vs 6.4
A portable, serverless Go database for local key-value storage.
8.1/10★★★★☆Visit bbolt -
Best forGo apps needing transactional key-value storage
- Better than sql.js:
- Editor score 8.0 vs 6.4
A focused Go database for transactional, local key-value storage.
8.0/10★★★★☆Visit Badger -
Best forEmbedded storage with flexible layouts
- Better than sql.js:
- Editor score 7.9 vs 6.4
A flexible embedded key-value engine with transactional storage and recovery features.
- Encryption
7.9/10★★★★☆Visit WiredTiger -
Best forMinimal ordered key-value storage
- Better than sql.js:
- Editor score 7.8 vs 6.4
A focused C++ library for local, ordered byte-array key-value storage.
7.8/10★★★★☆Visit LevelDB -
Best forC++ key-value systems needing bindings
- Better than sql.js:
- Editor score 7.7 vs 6.4
A flexible open-source key-value library for embedded C++ storage and indexing.
- Data synchronization
- Encryption
7.7/10★★★★☆Visit Tkrzw -
Best forGo applications needing tunable storage
- Better than sql.js:
- Editor score 7.6 vs 6.4
A tunable Go library for persistent local key-value storage.
7.6/10★★★★☆Visit Pebble -
Best forOpen-source embedded vector search
- Better than sql.js:
- Editor score 7.5 vs 6.4
A focused embedded retrieval library for AI workloads needing multimodal and hybrid search.
7.5/10★★★★☆Visit LanceDB -
Best forManaged or self-hosted vector search
- Better than sql.js:
- Editor score 7.4 vs 6.4
A flexible vector database for hybrid search, filtering, and AI retrieval.
7.4/10★★★★☆Visit Qdrant
sql.js Alternatives: Common Questions
What is the best alternative to sql.js?
SQLite: #1 in our Embedded Databases ranking, with an editor score of 9.4 out of 10. A capable, zero-configuration SQL engine for applications that need local embedded storage.
Is there a free alternative to sql.js?
Yes. SQLite, H2 Database Engine, Firebird, HSQLDB and RocksDB have a free plan or a free tier (15 of the 15 alternatives on this page).
Why do people look for sql.js alternatives?
Databases are held in memory by default; Its primary platform focus is browser-based applications; File persistence requires the documented Node.js or import/export workflows.
How do I switch from sql.js?
Export your data from sql.js (most tools have an export in their settings). Sign up for the alternative; start on its free plan or trial if it has one. Import your export and set up the integrations your team relies on. Run both side by side for a short while, then cancel sql.js.
How to Switch from sql.js
- Export your data from sql.js (most tools have an export in their settings).
- Sign up for the alternative; start on its free plan or trial if it has one.
- Import your export and set up the integrations your team relies on.
- Run both side by side for a short while, then cancel sql.js.
sql.js vs Each Alternative
| # | Tool | Free plan | Paid from | Supported platforms | Database model | Score |
|---|---|---|---|---|---|---|
| 24 | sql.js | Yes | Free | Web browsers; Node.js | Relational | 6.4 |
| 1 | SQLite | Yes | Free | 9.4 | ||
| 2 | H2 Database Engine | Yes | Free | 9.1 | ||
| 3 | Firebird | Yes | Free | 9.0 | ||
| 4 | HSQLDB | Yes | $100/yr | 8.8 | ||
| 5 | RocksDB | Free | Linux, macOS, Windows, iOS, FreeBSD, OpenBSD, AIX, Solaris | Key-value | 8.5 | |
| 6 | libSQL | Yes | Free | macOS, Linux, Rust, JavaScript, Python, Go, C, WebAssembly | Relational | 8.4 |
| 7 | PouchDB | Yes | Free | 8.2 | ||
| 8 | bbolt | Free | Windows, macOS, Linux, iOS, Android | Key-value | 8.1 | |
| 9 | Badger | Free | 8.0 | |||
| 10 | WiredTiger | Free | Linux, *BSD, macOS, Windows, and other 64-bit POSIX systems | Key-value | 7.9 | |
| 11 | LevelDB | Free | Linux, macOS, Windows | Key-value | 7.8 | |
| 12 | Tkrzw | Free | C++ library with Python, Ruby, Java, and Go bindings | Key-value | 7.7 | |
| 13 | Pebble | Free | Go applications | Key-value | 7.6 | |
| 14 | LanceDB | Free | 7.5 | |||
| 15 | Qdrant | Yes | 7.4 |
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update