Version 3.0 — February 2026
Welcome to the Noble Mind Study Tool, a free Bible study application that runs entirely in your browser. Create lessons, import from PDF, look up Scripture, study original Greek and Hebrew words, explore biblical maps, and organize everything into personal vaults — all without an account or internet connection (for most features).
"Now these were more noble-minded than those in Thessalonica, for they received the word with great eagerness, examining the Scriptures daily to see whether these things were so."
Acts 17:11 (NASB)
Visit noblemind.study and click Open the Study Tool. The app loads entirely in your browser — no account, no login, no server required.
You can also install it as an app on your device for a full-screen experience. On the landing page, click the Install App button (or use your browser's "Add to Home Screen" or "Install" option). Once installed, the app works offline.
The main screen is organized from top to bottom:
Tip: Panels like Search, Scripture Index, Resources, Backup, Import PDF, and Scan/OCR are toggles — click the button once to open the panel, and click the same button again to close it.
Theme Toggle: Use the switch in the top bar to swap between Dark and Light mode. Dark mode is the default.
Text Size: Click A− to decrease or A+ to increase the font size (range: 12px to 24px). Your preference is saved automatically.
Dyslexia Font: Click the Dyslexia Font button to switch all text to OpenDyslexic, a typeface designed for readers with dyslexia. Click again to switch back. This setting is saved across sessions.
Vaults let multiple people share the same browser without mixing up their lessons. For example, a husband and wife can each have their own vault, or a class can set up individual vaults for each student — all on the same device.
Every installation starts with a Shared vault. This is the default workspace and cannot be renamed or deleted.
The vault controls appear in the lesson picker area, labeled "Vault:" with a dropdown and three buttons:
Note: The Shared vault cannot be renamed or deleted. Its rename and delete buttons are disabled.
Click ➕ New Lesson to create a lesson from scratch. You'll be guided through three prompts:
Once submitted, the lesson is saved and loads immediately. You can then fill in the scripture reference, subtitle, and series fields in the header.
Click 📄 Import PDF to open the import panel. This workflow extracts multiple lessons from a single PDF file.
Tip: PDFs with selectable text import fastest. Image-only PDFs will fall back to OCR scanning, which takes longer. After import, review each lesson to verify questions were detected correctly.
Click 📷 Scan / OCR to extract text from a scanned image or image-based PDF.
Use the Series dropdown to filter by a specific series (or choose "All Series" to see everything). Then select a lesson from the Lesson dropdown. Lessons within a series are sorted numerically — "Lesson 7" appears before "Lesson 12".
The header area shows editable fields for:
All changes auto-save as you type. There is no manual save button — your work is always preserved.
Each question has a text area below it for your answer. Type your response and it is saved automatically. A word count appears beneath each answer field, updating as you type.
When a lesson is loaded, a progress bar appears showing how many answerable questions you've completed. For example: "8 of 15 answered (53%)". The bar updates in real time as you type.
The Mode dropdown in the lesson picker area offers two options:
The 🔑 Print Key button prints the lesson with answer keys included.
Click 💾 Save Lesson to export the currently loaded lesson as a single .json file. This file contains the lesson title, scripture, subtitle, series, all questions, student answers, and teacher answers.
Use this for:
Click 📂 Open Lesson to import a single-lesson .json file into your current vault.
Note: Save/Open Lesson works with individual lessons. For backing up all lessons at once, use Backup & Restore (see Section 13).
Click 📖 Bible Lookup in the header area to open the lookup popup. You can also enter a reference in the Scripture field and click the button.
The popup is draggable — click and drag the header bar to reposition it.
Note: All translations except KJV + Strong's require an internet connection, fetched from the Bolls.Life API. The KJV + Strong's option uses a local data file and works fully offline.
Select "KJV + Strong's" from the translation dropdown to load the King James Version with embedded Strong's Concordance numbers. Each significant word in the text is tagged with its Greek (G####) or Hebrew (H####) number.
Click any Strong's number to open a Word Study popup showing the original language word, its transliteration, pronunciation, and definition. See Section 7 for details.
This feature uses the local KJV.json file (12.4 MB) and works completely offline.
When viewing a passage in KJV + Strong's mode, each word is tagged with a Strong's number. Click any number (e.g., G3056 or H1697) to open the Word Study popup.
Definitions often reference other Strong's numbers. These appear as clickable links (e.g., G1234 or H5678). Click them to jump to that entry without closing the popup. This lets you trace word relationships and study how terms connect across Scripture.
Click 🗺 Maps in the header area to open the interactive Bible map in a full-screen modal.
The map features 1,309 biblical locations from the OpenBible.info dataset, displayed on a terrain map powered by Leaflet.js.
Type a location name in the "Search any location..." box. A dropdown appears with matching results as you type. Click a result to pan and zoom the map to that location.
Use the Theme dropdown to overlay a journey route on the map. Available themes include:
Each theme draws a route with numbered markers, location labels, and colored path lines. The map automatically pans and zooms to fit the journey. Select "Search Only" to clear the route and return to a clean map.
Click 🔍 Search in the controls bar to open the search panel.
The search checks all of the following fields in every lesson:
Matching text is highlighted in the results so you can see the context of each match.
Click 📑 Scripture Index in the controls bar to open the index panel. Then choose:
The tool scans questions, student answers, and teacher answers for scripture references (e.g., "John 3:16", "Acts 2:38-41") and lists them all.
Each entry shows the reference, the lesson it came from, and where it appeared (e.g., "Question 3" or "Answer 7"). Click any reference to open the Bible Lookup popup for that verse.
Click 📥 Export Index to download the index as a .txt file.
Click 📚 Resources in the controls bar to open the resources panel. Resources are organized by congregation/source (shown as tabs) and category within each tab.
The default resources include materials from Churches of Christ congregations, including study guides, Bible book workbooks, topical studies, and the StraitWay curriculum. Each resource is a clickable link that opens in a new tab. Small badges indicate the file type (PDF, Website, Enhanced, DOCX).
Click ✎ Edit Resources to enter edit mode, where you can:
Click ↩ Reset to Default to restore the original resource list.
Click 🖨 Print Lesson to print a clean, formatted copy of the current lesson. The printout includes the lesson title, scripture reference, subtitle, blank lines for student name and date, and all questions with space for handwritten answers. This is ideal for classroom handouts.
Click 🔑 Print Key to print the lesson with teacher answer keys included below each question. The header is labeled "Answer Key" to distinguish it from student copies.
Click 📄 Export PDF to download a PDF file of the current lesson with your student answers. The file is named [Lesson Title]_Answers.pdf.
Click 📝 Export Text to download a plain text (.txt) file with all questions and your answers. The file is named [Lesson Title]_Answers.txt.
All your lessons are stored in your browser's localStorage. This data can be lost if you clear your browser data, switch browsers, or reinstall your operating system. Regular backups protect your work.
Click 💾 Backup in the controls bar to open the backup panel, then click 📥 Download Backup.
This creates a single JSON file containing every lesson in your current vault — all titles, scripture references, questions, student answers, and teacher answers. The file is named Bible_Study_Backup_[date].json.
In the backup panel, select a backup .json file and click 📤 Import Backup.
Save/Open vs. Backup: Save/Open Lesson works with a single lesson file. Backup & Restore works with all lessons in your vault at once. Use Save Lesson to share individual lessons; use Backup to protect your entire collection.
Click Clear to erase all student answers from the current lesson while keeping the questions, metadata, and teacher answer keys intact. This is useful when you want to redo a lesson from scratch or prepare it for a new student.
Click 🗑 Delete to permanently remove the current lesson from your vault. You'll see a confirmation prompt with the lesson title. This action cannot be undone — back up important lessons first.
The AI Study Guide is a downloadable PDF of guiding principles for AI-assisted Bible study. It is designed to be uploaded to any AI tool (ChatGPT, Claude, Gemini, etc.) as a system instruction, so the AI approaches Scripture honestly — free from denominational bias — and lets Scripture interpret Scripture.