DocSearch File Content Search

Li Jane

Contains adsIn-app purchases

About this app

DocSearch+ is a powerful, 100% offline full-text search engine designed specifically for indexing and searching document contents on your phone. No internet connection required—your files and privacy stay completely safe on your device.

Easily search both filenames and text inside files using advanced keywords. Unlike general system searches, DocSearch+ focuses entirely on your files—delivering clean, fast results without clutter from contacts or apps.

Key Features
100% Offline & Private Search
• Complete Privacy: All indexing and searching are performed locally on your device. No files or search queries are ever uploaded to any server.
• No Internet Required: Search your documents anytime, anywhere—even without a network connection.

Powerful Full-Text Search Engine
• Search inside files and document contents instantly with local indexing.
• Advanced search modes: Boolean operators (AND/OR/NOT), Phrase search, Proximity search, Regex, and Grep.
• Search special characters and exact strings (e.g., #abc, 2366–1245, email addresses).
• Supports multiple languages, including English, Chinese, Japanese, Korean, Arabic, German, French, Russian, Spanish, Portuguese, and most major Asian and European languages.

In-App Viewing & Document Management
• Fast In-App Viewer: View file contents directly without switching apps.
• Highlighted Matches: Jump straight to matched keywords in Full-Text or Brief-Text view.
• Built-in File Explorer: Open, copy, move, delete, filter, sort, and share search results seamlessly.

Broad File Format Support
• Documents & PDFs: PDF, DOC, DOCX, XLS, XLSX, PPT, PPTX, ODT.
• E-books & Web: EPUB, HTML, HTM.
• Plain Text & Code: TXT, JAVA, PHP, and other source code files.

Subscription Features
• Standard: Advanced sorting and filtering of search results.
• Premium: Unlimited full-content viewing and secondary keyword search within results.

Privacy & Permissions Notice
Your privacy is our top priority. DocSearch+ works entirely offline and respects your data boundaries.

Why MANAGE_EXTERNAL_STORAGE Permission is Required:
To provide complete file-content search, DocSearch+ requires permission to access and index your documents locally across storage. Because the app operates offline, your documents never leave your phone. Without this permission, the core full-text indexing and search functions cannot operate.

Quickly locate work documents, personal notes, or study materials with DocSearch+. If you have feedback or questions, feel free to contact us!

Ratings and reviews

Finally!! Just what I needed! I had not been able to find an app that searched WITHIN a file, not just looking at filenames. This is just what I had been looking for. Now when I can't remember which file contained what I was seeking, I can find it quickly and easily with this app. It saves me SO much time and frustration. Kudos to the developer! I highly recommend this app; there are none others that can do what it does. And no annoying ads!

Overall I like the app but have found some issues in the search function. It seems the app doesn't like special characters such as / - etc. For instance I have stories that show pairings as Name1/Name2 but when you put that in quotes eg "Name1/Name2" the app returns any story that contains either Name1 or Name2 rather than the shorter list of stories that contain the phrase "Name1/Name2". Hopefully the next version of the app will fix that issue. Other than that the app works really well.

This is criminally under-rated. The interface is a bit arcane, but functional. Underneath is by far the best content search tool I've found on mobile. Supports boolean, variable proximity search & stemming. Can also configure the amount of context text shown around matches, which is very useful indeed. Filter options being a pro feature is a bit of a downer, but on the whole, $8 is a perfectly reasonable price for such a useful app. Only true negative is the inability to easily exclude directories from search. As far as I can tell you have no control over the filename search and the content search indexes are additive only meaning you'd need to add all your directories manually if you want to exclude a few. Other than that inconvenience, everything works as expected and WELL. If you need local content search on Android, DocSearch+ is the best I've found.

What’s new

1. Upgrade Play Billing Library to version 9.0
2. Improve performance
3. supported android 16
4. Fix the issue where the Back button does not work on Android 16.