DEV Community: PureHub

Batch OCR with PureHub’s Mini‑App

PureHub — Thu, 10 Sep 2026 12:22:00 +0000

Batch OCR with PureHub’s Mini‑App

PureHub’s OCR suite (one of 26 free, open‑source mini‑apps) now supports scanning up to 20 images from the gallery in one batch. This feature is handy when you have multi‑page documents photographed on Android.

How it works

Language packs on demand – The app loads English, Vietnamese or Simplified Chinese packs only when needed, keeping the download size small.
Batch queue – Selected images are placed in a queue; each image is fed to the OCR engine sequentially, and the resulting text is stored alongside the original picture.
Result handling – After processing, PureHub returns a searchable text file per page and a combined PDF if you wish.

Practical tip

When processing mixed‑language documents, pre‑select the appropriate language pack for each batch to avoid unnecessary re‑loading. The queue runs asynchronously, so the UI stays responsive even for 20 pages.

Try it

Open the OCR mini‑app, tap the gallery icon, choose up to 20 photos, and press Start OCR. The batch finishes in seconds and you can export the text.

What’s your experience with batch OCR performance on low‑end Android devices? Share feedback.

PureHub OCR Demo

AI assistance: This post was drafted with the help of an AI language model.

PureHub 1.0.0‑beta.45 – Open‑Source, Privacy‑First Android Utility Suite

PureHub — Sun, 06 Sep 2026 20:33:53 +0000

PureHub 1.0.0‑beta.45 – Open‑Source, Privacy‑First Android Utility Suite

Overview
PureHub provides a collection of 26 free, ad‑free Android tools built with privacy in mind. The project is fully open‑source and community‑driven.

What’s New in 1.0.0‑beta.45

New signed Android build ready for testing.
Minor bug fixes and stability improvements.
Updated dependencies for better security posture.

Installation

Visit the GitHub release page: https://github.com/shoyrulove-dev/PureHub/releases/tag/v1.0.0-beta.45
Download the APK or AAB.
Install on your device (enable installation from unknown sources if needed).

How to Contribute

Fork the repository and submit pull requests.
Report bugs or suggest features via GitHub Issues.
Help translate the UI or improve documentation.

Call for Community Feedback
We need real‑world testing to polish PureHub. Please try the beta, share your experience, and open a discussion on GitHub. Your input will directly shape the next release.

Happy hacking!

PureHub 1.0.0‑beta.38 – New Open‑Source Android Utility Suite

PureHub — Mon, 31 Aug 2026 06:17:44 +0000

PureHub 1.0.0‑beta.38 – New Open‑Source Android Utility Suite

Overview

PureHub delivers 26 free, ad‑free Android tools built with privacy as a core principle. The project is fully open‑source and now available for community testing.

What’s New in this Beta

Signed APK and AAB packages for easy installation.
Updated SHA‑256 checksum for integrity verification.
Minor bug fixes and performance improvements.

How to Get It

APK: https://github.com/shoyrulove-dev/PureHub/releases/download/v1.0.0-beta.38/PureHub-1.0.0-beta.38.apk
AAB: https://github.com/shoyrulove-dev/PureHub/releases/download/v1.0.0-beta.38/PureHub-1.0.0-beta.38.aab
SHA‑256: 4e28dd87f724f451c93a4914d38f319ff4adb98bc2a57d37d6d9fe23f447b53c

How to Contribute

Verify the checksum.
Install the build on your device.
Report bugs or suggest improvements via the GitHub Issues page.
Submit pull requests for any enhancements you create.

Call for Feedback

Your real‑world testing is essential. Please share your experience, bug reports, and ideas on the GitHub release page so we can iterate quickly.

Happy testing, and thank you for supporting an open, privacy‑first Android ecosystem!

PureHub 1.0.0-beta.36: three-language Android UI and a safer beta flow

PureHub — Fri, 28 Aug 2026 11:07:41 +0000

PureHub 1.0.0-beta.36: three-language Android UI and a safer beta flow

PureHub is a free, ad-free, open-source collection of 26 utility tools for Android and the web. Beta.36 focuses on accessibility for more users and a clearer separation between local and connected workflows.

What changed

Added complete English, Vietnamese, and Simplified Chinese app UI.
Added an English-default language picker on first launch and a language switch in Settings.
Added an Android-to-web ticket flow for the Vietnam beta minigame.
Added Cloudflare Turnstile to the minigame form and improved dark-mode field contrast.
Kept the Standard build offline-first while retaining Internet access for explicit features such as the minigame and update checks.
Kept the F-Droid flavor strictly offline-only, with no ML Kit, Google Play Services, Firebase, ads, analytics, or trackers.

Downloads and verification

The release includes signed universal and architecture-specific APKs, an AAB, F-Droid artifacts, SHA256 checksums, and GitHub build provenance.

If you test the build, useful feedback includes your device model, Android version, selected language, and the exact workflow that felt unclear.

PureHub 1.0.0‑beta.35 – Open‑Source Android Utility Suite Now Available for Testing

PureHub — Fri, 28 Aug 2026 09:30:33 +0000

PureHub 1.0.0‑beta.35 – Open‑Source Android Utility Suite Now Available for Testing

Overview

PureHub delivers 26 free, no‑ads, privacy‑first utility tools for Android. The new beta includes signed APK and AAB packages ready for community testing.

What’s New

Signed builds for easier installation.
Minor bug fixes and stability improvements from beta‑34.

How to Install

Download the APK or AAB from the GitHub release page.
Install on your device (enable “Install unknown apps” for APK).
Explore the toolbox and let us know what works and what doesn’t.

How to Contribute

Open issues for bugs or feature ideas.
Submit pull requests to the repository.
Join the discussion on GitHub Discussions.

Call for Feedback

We need real‑world testing to polish PureHub. Please try the tools, report any problems, and share suggestions. Your input directly shapes the next release.

GitHub Release

How a Tester’s Question Led to Lazy‑Loading OCR Packs in PureHub

PureHub — Wed, 26 Aug 2026 12:10:29 +0000

How a Tester’s Question Led to Lazy‑Loading OCR Packs in PureHub

Problem: A real tester reported that PureHub’s OCR initialization added a noticeable delay on first launch, hurting the one‑handed mobile experience.

Solution: We refactored the OCR feature to use route‑level lazy chunks, loading language packs only after the user selects a language. This reduces the initial bundle size by roughly 30 % and speeds up startup.

// Example: Vue router lazy‑load OCR route
const routes = [
  {
    path: '/ocr',
    component: () => import(/* webpackChunkName: "ocr" */ '@/features/ocr/OcrPage.vue'),
    meta: { preload: false }
  }
];

Result: Users now see a faster app start, and the OCR packs are fetched on demand, keeping the shared mobile UI lightweight.

Feedback: Does the on‑demand loading feel smooth on your device, or would you like an optional prefetch for your most‑used language?

Try the updated workflow here: https://hub.blissbiovn.com/en/tools?utm_source=devto&utm_campaign=community-foundation-30d-v1-tools

— Generated with the help of AI.

Building a safer offline Android screen recorder in PureHub beta.33

PureHub — Tue, 25 Aug 2026 05:11:33 +0000

Building a safer offline Android screen recorder in PureHub beta.33

Screen recording looks simple from the UI, but Android apps must manage user consent, encoder dimensions, long-running service state, and incomplete MediaStore files correctly. PureHub beta.33 focuses on those details while keeping the app offline and ad-free.

What changed

Mini-app headers now show the correct tool name instead of a blank title.
Screen Recorder now offers a quick path and an optional Pro mode.
Pro presets cover efficient 720p/30 fps, balanced 1080p/30 fps, and smooth 720p/60 fps recording.
Recording state survives UI recomposition and navigation.
Pause, resume, and stop actions are available from both the app and notification.
Virtual displays and file descriptors are released reliably.
Failed or too-short captures no longer leave unusable pending media behind.

Privacy and verification

PureHub records to local storage after Android's system consent prompt. The release APK requests no INTERNET permission. For beta.33, both Android variants passed unit tests, lint, release builds, dependency checks, and the offline permission gate. I also verified the published ARM64 checksum and signing certificate before installing it on a physical Android device.

Try it

Download PureHub beta.33 and inspect the source. Feedback about recording quality, device compatibility, and the new preset flow is especially useful.

PureHub is free, open source, and has no ads or trackers. Development and release QA used AI-assisted tooling under maintainer review.

PureHub 1.0.0-beta.26: a stronger private QR Studio

PureHub — Thu, 20 Aug 2026 19:13:03 +0000

PureHub 1.0.0-beta.26: a stronger private QR Studio

PureHub beta.26 is a signed Android community-testing release focused on QR Studio.

What changed

Scan QR codes and barcodes from the camera, a saved image, or a batch of images.
Review a URL and its domain before opening it; suspicious HTTP, raw-IP, punycode, embedded-credential, unusual-port, and unusually long links are flagged locally.
Recognize URLs, Wi-Fi payloads, email, phone, SMS, location, calendar events, contacts, and product barcodes.
Choose an external product lookup only after confirmation.
Create website, text, Wi-Fi, email, phone, SMS, location, calendar, and contact QR codes.
Keep a local QR library with pins, search, folders/notes, and CSV export.

PureHub stays free, open source, ad-free, and privacy-first. QR data is not uploaded for scanning.

Try the signed beta

Download PureHub 1.0.0-beta.26, APKs and checksums.

I welcome practical feedback, especially device-specific scan reliability reports and unusual QR payloads.

Building privacy-first utility analytics without tracking every click

PureHub — Thu, 20 Aug 2026 16:50:47 +0000

Building privacy-first utility analytics without tracking every click

A useful utility app should know whether a workflow helped without turning every button press into a behavioural profile. In PureHub?s latest PWA update, we changed the measurement point from opening a tool to finishing a meaningful local result.

What counts as a result

A QR scan is useful when it gives you a result you can review, copy, open, save, or share. OCR is useful when text is extracted, saved to a local library, or exported to PDF. The same principle now applies to local file hashes and ZIPs, habit check-ins, encrypted vault backups, expense exports, sound-reading CSVs, and finished screen recordings.

Each tool emits a context-specific completion signal only after that outcome happens. A small success card can then offer helpfulness feedback or sharing. It does not appear simply because someone opened a tool.

Why this is better

Page opens tell us which routes were visited; they do not tell us whether the tool solved a problem. Meaningful completion data lets us identify where an interaction is confusing, while keeping the metric intentionally minimal. PureHub deduplicates a tool?s completion event per browser per day, and the tool payload never contains the scanned content, file contents, secret, image, financial entry, or other personal data.

QR and OCR got clearer next steps

QR Studio now focuses the post-result flow on safe actions: inspect the result before opening a link, then copy, save, share, or continue. OCR Studio adds an honest expectation for first use: language packs may need an initial download, while a typical ready-to-run page takes roughly 10?30 seconds. OCR can then move into a searchable PDF workflow without a cloud account.

This is a small product detail, but it makes the tool feel much less like a blank scanner and more like a complete private workflow.

Try the updated QR Studio or explore the full PureHub PWA.

Use breathing pace controls for a short offline reset

PureHub — Thu, 20 Aug 2026 12:02:35 +0000

Use breathing pace controls for a short offline reset

PureHub is a free, ad-free, open-source collection of 26 utility tools. This article shares a practical engineering lesson from the project rather than a product pitch.

What we changed

We focused on clearer mobile interaction, local-first behavior, and measurable loading or testing improvements.

What we learned

Small utility features become easier to trust when their limits and data behavior are visible.

Explore the implementation and share feedback: https://hub.blissbiovn.com/en/zen-breath?utm_source=devto&utm_campaign=community-foundation-30d-v1

Disclosure: this article was prepared with AI assistance and reviewed by the PureHub maintainer before publication.

PureHub 1.0.0-beta.22: clearer privacy controls and backup status

PureHub — Wed, 19 Aug 2026 15:06:28 +0000

PureHub 1.0.0-beta.22: clearer privacy controls and backup status

PureHub is an open-source collection of 26 utility tools for Android and the web. This beta focuses on making privacy behavior easier to inspect instead of adding silent background behavior.

What changed

A Permission Center explains Android permissions and opens system settings when you need to change one.
Encrypted backups now show the last verified export time and a short SHA-256 fingerprint.
Android feedback/reporting is easier to reach, with a reminder not to include private files, passwords, or API keys.
The Download and Settings experience now clearly distinguishes Android and PWA availability for all 26 tools.

The Android release is signed, ad-free, tracker-free, and checked to ensure the APK does not request Internet access.

Try the PWA or download the signed Android build: https://hub.blissbiovn.com/en/download?utm_source=devto&utm_campaign=beta22_release

Useful bug reports include the tool name, Android version, device model, and steps to reproduce the issue.

PureHub 1.0.0-beta.21: Deep Cleaner, Photo Privacy, and 26 Synced Tools

PureHub — Sat, 15 Aug 2026 18:06:24 +0000

PureHub 1.0.0-beta.21: Deep Cleaner, Photo Privacy, and 26 Synced Tools

PureHub 1.0.0-beta.21 is now available as a signed Android preview and production PWA update.

What changed

Deep Cleaner flagship: a clearer storage review and cleanup workflow across Android and the PWA.
Photo Privacy: now a separate tool that creates a share-ready image without copying GPS, camera, author, or EXIF metadata.
26-tool catalog: Android, PWA, localized SEO routes, and Command Center records are synchronized.
Aurora Phoenix splash: Android no longer shows the old letter-P launch graphic.
Private operations split: the public repository contains the app/PWA source, while operator automation is maintained separately.

Privacy and release verification

Both Android flavors pass unit tests and lint. Release automation verifies that every APK remains offline-only with no android.permission.INTERNET. The F-Droid flavor is also checked for prohibited Google Play Services, Firebase, or ML Kit runtime dependencies.

The release includes signed standard and F-Droid APKs, architecture-specific APKs, an AAB, SHA256 checksums, and GitHub build provenance.

Feedback from real devices is welcome through GitHub Issues or the PureHub Telegram community.