Listen to Blue Letter Bible
Turn any blueletterbible.org chapter into audio while you study. Open the passage in Chrome, click CastReader, and listen as you cross-reference Strong's, lexicons, and commentaries — eyes free for the study tools.
Why Listen to Blue Letter Bible with CastReader?
BLB is a study Bible — the page is dense with Strong's numbers, lexicon links, and commentary panels. Audio for the chapter text + eyes on the study tools = the way BLB was meant to be used.
Study Mode
Reads the Verse Text, Not the Strong's Numbers
BLB inlines Strong's numbers next to most words (G2316, H430). CastReader reads the verse text and skips the Strong's tags — so the audio sounds like Scripture, not a code recital. The numbers are still on screen for when you click into a lexicon entry.
Hands Free
Listen While You Cross-Reference
BLB's strength is the panels: parallel translations, Greek/Hebrew interlinear, lexicon entries, commentaries (Matthew Henry, Calvin, Spurgeon). With audio playing, you can mouse around the panels and read commentary without losing your place in the chapter — eyes free for the study work, ears on the text.
Verse Highlight
Verse-by-Verse Sync with the BLB Layout
BLB's chapter view tags each verse as its own block. CastReader highlights the verse currently being read, in sync with the audio. When you pause to look up a Greek root, you know exactly which verse you'll resume from.
Any Translation
KJV, ESV, NASB, NIV, NLT, NKJV — the BLB Set
BLB displays a curated set of major English translations. CastReader reads whichever one you have selected. Switch from KJV to NASB and the audio follows.
Frequently Asked Questions
Everything about listening to Blue Letter Bible with CastReader
How do I listen to a chapter on BLB?
Open the chapter on blueletterbible.org in Chrome (e.g., Romans 8). Click the CastReader icon. Audio starts at verse 1, follows the displayed translation, and stops at the chapter end.
Does it read the Strong's numbers?
No — Strong's numbers, parsing tags, and lexicon links are filtered from audio. The text reads cleanly. The numbers and links stay clickable on screen for when you want to dig into a word.
Will it read commentary panels (Matthew Henry, etc.)?
Not by default — CastReader reads the active chapter. To listen to a commentary entry, navigate to the commentary page directly and CastReader will read that page.
Can I listen with the interlinear visible?
Yes. The interlinear view (Greek/Hebrew with parsing) still has the English verse text rendered. CastReader reads the English verse text, skipping the parsing tokens. Read along with the original languages while audio holds the chapter together.
What about the search results page?
BLB's search results (verses matching a Strong's or English query) read as a list — each result verse plays in sequence.
Is the Apocrypha covered?
BLB's catalog is mostly Protestant canon — 66 books. CastReader reads whatever BLB displays.
Can I adjust reading speed?
Yes. 0.5x through 3x. For careful study, 1.0x. For chapter-overview reading, 1.5x.
Is it free? Any limits?
Completely free. No account, no chapter limit. CastReader is a free Chrome / Edge extension.
Start Listening to Blue Letter Bible
Completely free. No signup. No chapter limits. Install CastReader and open any blueletterbible.org chapter.