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Blue Letter Bible
Blue Letter Bible is a free, nonprofit Bible study platform offering over 30 translations alongside deep reference tools. Features include Hebrew and Greek interlinear study with Strong's Concordance integration, 8,000+ text commentaries from 40+ authors, dictionaries, encyclopedias, and audio Bibles. The platform is operated by an ECFA-accredited 501(c)(3) organization and is supported entirely by donations.
Available on web, iOS, and Android, it serves students, pastors, and serious Bible readers who want scholarly-level tools without a subscription. The web version and mobile apps share the same core features, including keyword search, morphology tools, devotional reading plans, and the BLB Institute (free courses). No paid tier exists; all features are free.
Screenshots
Our verdict
Blue Letter Bible has quietly become one of the most respected free study resources online, and the app carries that reputation onto your phone. Tap almost any word and you can jump straight to its Strong's number, parse the underlying Greek or Hebrew, and read how the same term is translated elsewhere in Scripture. For a tool that costs nothing, the depth of the original-language layer is genuinely surprising.
Around that core sit interlinear views, dozens of public-domain commentaries, cross-references, dictionaries, and a clean text-to-speech reader. The interface has grown more polished over the years, and while it will never feel as slick as a paid flagship, everything you need for word studies and passage research is within a tap or two. This is a tool built by people who clearly study the Bible themselves.
The trade-offs are honest ones: the modern translation lineup is thinner than a paid library, offline behavior depends on what you download first, and the sheer number of resource panels can overwhelm newcomers. But for anyone who wants to dig into the text without a subscription, Blue Letter Bible is one of the best deals in Christian software, full stop.
How we scored it
Standout features
Strong's & lexicons
Tap any word to reach its Greek or Hebrew root.
Interlinear text
See original languages aligned with the English verse.
Commentary library
Dozens of classic commentaries built into every passage.
Word studies
Trace how a term is used across all of Scripture.
Audio reader
Listen to passages with built-in text-to-speech.
Cross-references
Jump between related verses without leaving the text.
Pros & cons
✓ Pros
- Exceptional free original-language tools with Strong's and interlinear
- Deep library of public-domain commentaries and cross-references
- Clean text-to-speech audio reader for hands-free listening
- Trusted, long-running ministry with no ads or paywalls
- Word-study workflow that rivals paid study Bibles
– Cons
- Modern copyrighted translations are limited compared to paid libraries
- Offline access requires downloading resources ahead of time
- Dense panels can overwhelm first-time or casual users
Best for
Bible students and teachers who want serious word-study and original-language tools without paying for a subscription platform.
Look elsewhere if
You mainly want a large catalog of modern copyrighted translations or a polished reading-first devotional experience.
Pricing
How it compares
| Blue Letter Bible | STEP Bible | Bible Hub | e-Sword | |
|---|---|---|---|---|
| Our score | 8.6 | 8.2 | 7.9 | 8.0 |
| Original languages | 9.2 | 9.3 | 8.8 | 8.2 |
| Study tools | 8.8 | 8.5 | 8.6 | 8.7 |
| Design & UX | 8.0 | 7.5 | 6.8 | 6.5 |
| Free access | 9.8 | 9.8 | 9.0 | 8.8 |
FAQ
Is Blue Letter Bible really free?
Yes. The app, its study tools, and its resources are provided free by the ministry, with no ads or subscription tiers.
Does it include Greek and Hebrew tools?
Yes. Strong's numbers, interlinear text, lexicons, and morphology are core strengths of the platform.
Can I use it offline?
You can, but you need to download translations and resources while connected first.
What translations are included?
Several standard versions are available, though the modern copyrighted lineup is smaller than paid apps offer.
Is it good for beginners?
It works for everyone, but the depth of study panels can feel like a lot at first for casual readers.
