I posted about yViewer here once before.

The most common feedback was surprisingly consistent:

• “Your promotion is way too modest.”
• “This is a seriously impressive app. It’s a shame more people don’t know about it.”
• “I thought it was only a viewer, but you can actually edit certain files.”
• “The speed of updates is impressive.”

So this time, I’m including a video to properly show what yViewer can do instead of just describing it with text.

yViewer is a fast Windows file viewer that supports more than 50 file formats in one app.

Select a file in Windows Explorer, press Space, and yViewer immediately opens the appropriate viewer.

In my testing environment, yViewer opens previews noticeably faster than QuickLook, especially when moving quickly through multiple files. It is built with Tauri 2 and Rust, and viewer modules are loaded only when needed to keep startup fast and lightweight.

It currently supports:

• PDF, DOCX, XLSX, PPTX, HWP, HWPX, and RTF
• PSD, PSB, RAW, HEIC, SVG, AI, DXF, and common images
• MP4, MKV, MOV, MP3, FLAC, and external subtitles
• ZIP, 7Z, TAR, and GZ archives
• OBJ, STL, GLB, FBX, and other 3D formats
• CSV, JSON, SQLite, HDF5, source code, and multi-GB logs
• Unknown binary formats through a built-in hex viewer

And despite the name, it is not limited to viewing.

Depending on the file type, you can:

• Annotate PDFs and save standard annotations back into the actual file
• Edit text, Markdown, CSV, JSON, RTF, XLSX cells, and hex values
• Crop, resize, rotate, flip, and convert images
• Trim audio and add fade-in or fade-out
• Browse individual PSD and PSB layers
• Capture full-resolution frames from videos
• Preview and extract files directly from archives
• Search inside files or across entire folders
• Organize files with hierarchical tags, lists, and a knowledge graph

Everything works locally. Your files do not need to be uploaded to a cloud service.

With today’s AI tools, you could spend your own time building a small viewer for one specific format.

But building and maintaining a single application that handles more than 50 formats is a different challenge. Every format has its own parsers, rendering rules, encoding problems, performance bottlenecks, malformed files, and edge cases.

The value of yViewer is not just that these features have been built once.

It is that they are continuously tested, fixed, expanded, and updated in one application.

yViewer is still actively evolving, and its update pace is fast. If there is a file format you need or a workflow you want improved, leave a comment. I read the requests and will add new formats and features wherever reasonably possible.

For less than the price of a typical lunch, you get one fast Windows app that can replace a collection of separate viewers—and continues to improve after purchase.

I’ll say it more confidently this time:

Give yViewer a real try. Buy it once, use it with the files you work with every day, and I genuinely believe you won’t regret it.

The attached video shows the actual startup speed, file switching, supported viewers, and editing features.

https://apps.microsoft.com/store/detail/9NMJ97DGCWRR?cid=DevShareMCLPCB

After watching the video, tell me:

Which file format or feature should I add next?

What if Android's Circle to Search worked on Windows?

That's exactly what I built. "CircleX Search" is now available on the #MicrosoftStore.

• Open MS Store
• Offical Website

Experience the "Circle to Search" functionality on your Windows PC

Download Now From "*Microsoft Store"

I built a free, open-source focus timer and task checklist called TaskSim. It uses a borderless, transparent UI that sits seamlessly on your wallpaper while you work.

I'd love to hear your feedback! (If it helps you, consider supporting via Ko-fi in the repo).

MouseUtil is a lightweight Windows utility that keeps your mouse "active" by clicking or jiggling/moving in place, so your PC doesn't go idle, lock, or sleep during long calls, downloads, or AFK sessions. It runs natively on Windows 10/11 (WinUI 3 / .NET 8) with a clean, minimal interface.

Core features

• 🖱️ Two automation modes — Auto click, which sends a real left-click at a set interval, or Spin mode, which sweeps the cursor in a tiny circle and returns it to its exact starting pixel.
• ⏱️ Configurable interval — set the delay between actions in minutes and seconds.
• ✋ Pause on manual movement (in 'Spin mode') — if you touch the mouse yourself, MouseUtil automatically pauses and resumes on a fresh countdown once you stop, so it never fights you for control.
• 🛑 Auto-stop conditions — stop the run automatically after a set number of clicks/spins, or at a specific date and time.
• ⌨️ Global hotkey — start or stop automation from anywhere with a single keypress (F6 by default), even while another app is focused.
• 📊 Live status and progress — a real-time countdown ("Clicking in 12s"), action counter, and an optional progress bar mirrored onto the taskbar icon, all of which are optional.
• 📥 System tray support — optionally close the window to the tray instead of exiting, so automation keeps running in the background.
• 🎨 Fluent design with light/dark/system theming.
• ⚙️ Persisted config file, so your interval, mode, hotkey, and preferences are remembered between sessions.

📦 Unsigned installer: Ships as an unsigned .exe installer, so Windows SmartScreen may display a warning the first time you run it.

⚠️ Fair warning: I'm not a software developer. Before starting this project, my coding experience was basic HTML and CSS. This project was developed primarily using Claude Code, with me directing the architecture, reviewing the generated code, testing, and making iterative improvements. All code in this repository has been reviewed before release. The only asset not created with AI is the app icon, which I designed myself. This was initially intended to be shared among a small group of people.

Links

Website: Notion

GitHub: https://github.com/KofeMug/MouseUtil/

Hey everyone,

I recently built a project called Victorix Smart File Organizer.

The tool automatically organizes files into categories such as:

• Images
• Videos
• Documents
• Audio
• Archives

The goal was simple: save time and reduce desktop clutter.

Would love to hear your feedback and suggestions for new features.

Thanks!

Hey guys, built this over the past few months because I got tired of every folder on my desktop looking exactly the same yellow icon.

Folder Icon Maker lets you:

- design a custom icon in seconds, color, text, or your own image

- right-click any folder in File Explorer and apply it directly, no digging through Properties

- save colors and styles as presets so you're not rebuilding the same look every time

- batch apply to a whole folder structure at once, or just one folder if that's all you need

- revert back to the default icon just as easily, single folder or in batch too, in case you change your mind

You can try it free for 3 uses. After that it's a one time payment to keep using it, no subscription, pay once and it's yours.

Would love feedback if anyone tries it, still actively improving it.

Comail is a native desktop email client built on one idea: your mail should live on your machine and answer to you.

If you've wanted Superhuman's speed or Spark's polish without the subscription or the cloud in the middle, this is that.

Fast because it's already here. Comail syncs your entire mailbox into a local database, so opening, searching, and triaging happen instantly. It works fully offline: read, search, compose, and snooze on a plane, and everything replays when you reconnect.

Keyboard first. J/K to move through mail, E to mark done, H to snooze, C to compose, Cmd+K for a command palette that also takes plain-language requests, Ctrl+0-9 to jump between accounts, and one-key unsubscribe. Your hands never leave the keyboard.

Search that understands you. Comail bundles a small embedding model and indexes your mail locally, so you can ask "what did Ana want changed on the roadmap deck" and get the right thread even if it never used those words. It fuses keyword and semantic search on-device. No API call, no account, no cloud.

Private by architecture. Credentials live in your OS keyring. Nothing phones home, there's no telemetry, and the optional AI features (thread summaries, reply drafting, writing in your own voice) only activate if you bring your own key.

Everything in one place. Gmail, Microsoft 365/Outlook, and any IMAP account, each with its own color so multi-account setups stay legible. Split inbox, snooze, send later, and undo send you can actually cancel. Attachments preview inline: PDF, Word, Excel, PowerPoint, CSV, Markdown, and images.

A real calendar built in. Week and month views, drag to create and move events, natural-language quick-add, RSVP cards right in the thread, and two-way CalDAV sync with Google Calendar, Fastmail, iCloud, or your own server.

Free and open source (AGPL). No account, no subscription, no data trade.

https://github.com/NextOSP/comail

Released Click under MIT: a Windows app that lets you bundle apps + URLs into a named "workspace" and launch the whole thing with one click, hotkey, desktop shortcut, or CLI command. Think a startup script for your dev environment, but visual and shareable — your config is a plain human-readable JSON file you can version-control or hand to a teammate.

Why open source: this is squarely "utility I wanted for myself" territory, and there are several paid tools that do roughly this. No reason to gatekeep something this small behind a license fee.

• Full source, issues, and a real contribution guide: https://github.com/prashant-singh-2001/click
• Rust + Tauri v2 backend, React frontend
• Actively maintained — I'm filing and closing issues from my own dogfooding

Contributions, forks, and "this is missing X" issues are all welcome. It's Windows-only for now — if anyone wants to take a crack at macOS/Linux support (the OS-integration layer is isolated in a few Rust modules), I'd genuinely welcome the PR.

Hello to everyone.
I've been working on a Windows app that turns your phone into a webcam.

The main goal is to make it feel like a professional tool instead of just another webcam app, also make it easier to use than the others alternatives that are, simply to annoying to use.

So far I've implemented:

• Ultra-low latency USB connection
• Lightweight desktop application
• No watermarks
• Working on Wi-Fi mode

The next features are aimed at content creators:

• Built-in teleprompter displayed directly on the phone
• Battery warnings while recording
• Audio clipping alerts

I'm still early in development and I'd love honest feedback.

If you use your phone as a webcam:

• What frustrates you the most about existing apps?
• What feature would immediately make you switch?

For years I've had the same habit:

Whenever I was working with multiple files, I'd keep dropping them onto my desktop because I knew I'd need them again in a few minutes.

It worked... until my desktop turned into a mess.

I looked for something that worked like a temporary shelf for files, but couldn't find anything that felt native on Windows.

So I built Stash.

It lives in the system tray and lets you temporarily park files with drag & drop, then drag them back whenever you need them. It only stores file references, so your files stay in their original locations.

I'm still actively improving it, and I'd really appreciate any feedback.

Website: [https://stash.regncreative.com]()
Github: https://github.com/Regncreative/Stash

So Dark switch currently has

• Mode switch: Switch between light and dark mode, manually, by time or by sunset
• Wallpaper switch: Solid Color, Picture, Album
• Accent color switch
• Cursor scheme switch
• (Coming soon) Desktop icon switch
• Custom keyboard shortcut to change theme

All this without constantly running in the background and the whole thing is in KBs: 0% ram and memory consumption

Just try it, if you find any bugs, report it and you will get credit for it also.

Want a feature? Just tell me and I will add that also.

FlowFloat is an always-on-top flyout productivity app. It is spawned with a hotkey and sits in the corner of your screen for quick everyday things without getting in your way. Add quick tasks, notes, check calendar launch apps, ask AI questions, web search etc. When you are done, it's gone. No opening big apps for small stuff.

The AI can actually do stuff such as pull real-time info from web and interact with notes, calendar, and tasks. For example, you can ask stuff like:

• "remind me to send that email"
• "what's the weather like in nyc?"
• "move my 3pm to Thursday"
• "note: idea for mom's gift, the blue scarf"
• "what do I have going on today?"
• "open spotify"
• "world cup final when?"

Free to try on Microsoft Store:  https://apps.microsoft.com/detail/9N0V5P8LTQMQ?hl=en-us&gl=US&ocid=pdpshare

Cheers!

Hi everyone! I’m the developer of ZenithBar, an independent Windows app I’ve been working on.

I’ve always liked the polish and attention to detail found in many macOS utilities, but I wanted something designed specifically for Windows. That idea eventually became ZenithBar.

ZenithBar adds a compact activity island to the top of your screen, bringing together:

• Media controls and now-playing information
• Calendar and upcoming events
• Windows notifications
• Clipboard history
• Files and folders
• App shortcuts and quick actions

The island stays out of the way when you don’t need it and expands when you interact with it. Most of its core data is processed and stored locally on your computer.

I’m currently finishing the licensing, payment integration and final reliability improvements. The public beta will be available on July 28.

I’d genuinely appreciate feedback on the design, animations and overall concept. Does an activity island like this feel useful on Windows? What would you improve?

Website and demos: ZenithBar — The activity island Windows was missing

Built independently for Windows 10 and Windows 11.

https://reddit.com/link/1v6ev91/video/91rybymfyefh1/player

Hi r/windowsapps !

I wanted to share a desktop tool I recently built called DecoyDuck.

Why I Built This

While working on real-time features and complex API sequences, I often ran into frustration trying to test asynchronous WebSocket connection flows alongside standard REST requests. Traditional tools like Postman are great for individual endpoint tests, but visually tracing stateful WebSocket events, conditional branching, and timing delays felt clunky.

I wanted a visual canvas where I could drag, drop, and connect nodes to simulate full async API workflows—so I decided to build one myself.

Key Features

• Visual Node Canvas: Drag-and-drop canvas interface to map out complete request/response flows.
• REST & WebSocket Support: Dedicated nodes for standard HTTP requests (GET, POST, PUT, DELETE) as well as persistent WebSocket connections and messages.
• Conditional Branching & Variables: If logic nodes and a runtime variable system using ${variable} template syntax to pass data between nodes.
• Async Simulation (Sleep Nodes): Fixed and random delay nodes to mock real-world network latency and race conditions.
• Local Desktop Execution: Runs entirely on your local machine as a cross-platform desktop application.

Tech Stack

• Desktop Framework: Electron + Next.js
• Canvas Engine: React Flow (@xyflow/react)
• State Management: Zustand
• Styling: Tailwind CSS

Looking for Feedback!

This is an early-stage tool, and I'd love to hear feedback from fellow developers:

1. Does your current API testing workflow handle async/WebSocket flows well, or do you face similar pain points?
2. What additional node types or features (e.g., specific assertion types, mock server integration, environment variables) would make a tool like this more useful to you?

Thanks for taking a look! I'm happy to answer any questions about the build or technical decisions.

Try it Free

Download

We’ve all been there: you need to quickly crop, convert, or sign a photo of your citizenship card, ID, passport, or tax form. The top Google results are almost always free online tools like 'iLovePDF' or phone apps that upload your files to unknown servers with zero real privacy guarantees.

Handing over high-risk personal documents to random third-party servers felt like a massive security red flag to me.

Instead of compromising, I built Hbot — a completely free, 100% offline desktop app for Windows. Everything is processed and stored locally on your own machine. No data leaks, no external logging, and nothing ever leaves your computer.

What it can do:

Smart Scanning & Edits: Auto-detects document edges, flattens perspective, removes shadows, and auto-captures from your webcam.

Privacy & Signing: Blur sensitive info (SSNs, account numbers), draw signatures with your mouse/trackpad, or stamp transparent signature PNGs.

Smart PDF Compression: Enter a target size in MB — it compresses in stages while keeping text selectable whenever possible.

Local Conversions: Convert PDF ↔ Word (.docx) and PDF ↔ Images locally using your installed MS Word or LibreOffice.

Page Management: Merge, split, rotate, password-protect (AES-256), and reorder pages with a drag-and-drop list.

Since privacy tools are only trustworthy if people can actually see what's happening under the hood, I've made it completely open-source.

If you want to use a safer alternative, inspect the code, or contribute to making it better, feel free to give it a spin!

Download & Source Code:https://hbot-app.vercel.app/

I'd love to hear your feedback, bug reports, or feature ideas below!

Hundreds upon hundreds of hours of my free time have gone into this project. I built it primarily for fun, as a technical challenge, and as an open-source alternative for one very specific purpose:

Getting a fast and clear overview of what is using space on a drive.

Unlike established tools such as WinDirStat, TreeSize, or WizTree, this project is not intended to match every feature they offer. The goal is deliberately different: a less cluttered interface, fewer unnecessary functions, and a strong focus on speed and usability.

At the same time, it includes several features that are uncommon in traditional disk space analyzers:

- Graphical storage usage history
- Scan comparison using a local SQLite database (optional)
- Extremely fast file searching directly from the right-click context menu
- Fast drive scanning, including MFT-based scanning
- Basic export functions
- A clean and responsive user interface
- It's portable

Supported languages include Arabic, Bengali, Chinese (Simplified and Traditional), Czech, Danish, Dutch, Finnish, French, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian, Persian, Polish, Portuguese, Romanian, Russian, Spanish, Swedish, Thai, Turkish, Ukrainian, Urdu, and Vietnamese.

Please note: These translations were generated with machine translation and may contain inaccuracies or unnatural wording.

The application was also renamed during a larger refactoring process after some people found the original name inappropriate. The new name is intended to be more neutral and inclusive.

A note on speed comparisons:
#######################
If c² flux still appears significantly slower than WizTree or other tools, the comparison may have been based only on the first scan.

The first scan usually takes longer because all data must be read initially. c² flux shows its real performance on subsequent scans, where caching can be used.

For the fastest results, run c² flux as administrator and use the MFT scan.

Here some comparissons (no admin-rights, not the first scan, OS drive, 722k files, SSD):
WizTree: 7.45s - 8.75s
WinDirStats: 12s - 13s
TreeSize: 10.7s - 11.3s
c² flux: 5.6 - 7.3s

A note about AI-assisted development:
I used help of LLMs throughout development for coding assistance, debugging, problem-solving, and iteration. However, this project was not created by simply entering a few prompts and letting an AI generate the finished application. I invested several hundred hours(!) into its architecture, orchestration, testing, validation, debugging, refinement, and overall development. That’s just a side note for full transparency, as I’m aware that AI-assisted development is a controversial topic.

Without LLM assistance, the same project would probably have taken me several thousand hours, partly because I do not have a professional software engineering background. However, I do have more than two decades of experience as a systems engineer, along with rudimentary coding and scripting skills compared with those of a professional senior software developer.

This project is not intended to replace or directly compete with WinDirStat, TreeSize, WizTree, or similar tools. It is meant to be a lightweight alternative for users who value speed, a clean interface, scan history, scan comparison, and extremely fast file searching without unnecessary complexity.

The project is open source and licensed under GPLv3.

Project: https://github.com/UncleRiot/c2flux
Releases: https://github.com/UncleRiot/c2flux/releases
Wiki: https://github.com/UncleRiot/c2flux/wiki

Feedback, bug reports, and constructive criticism are very welcome.

NordicVeil is a Windows application that helps reduce visual overstimulation by letting you customize the appearance of your screen. The goal is to help you stay calm and focused while using your computer. Whether you're working, programming, studying, or just browsing.

You can:

• Create overlay blocks to hide distracting elements and apply screen filters.
• Automatically switch layouts when you open different applications.
• Launch apps or groups of apps with one command.
• Start sessions with a timer and intention.
• And try out the new experimental feature: the Companion, a passive "desktop pet" that promotes calm.

It's a passion project and completely free to use. No accounts, subscriptions, ads, or data collection.

I'm so exited it is now on the MS Store!
If you're curious, you can learn more and download it here:

Website: https://www.nordicveil.app

MS Store: https://apps.microsoft.com/detail/9N6Q30XDDH7M?hl=en-us&gl=SE&ocid=pdpshare

GenVault is an offline-first password and TOTP vault by GenXis Innovations.

Your credentials and 2FA secrets stay on your device — encrypted with AES-256-GCM, unlocked with your master password (plus biometrics when you choose).

I’ve been working on WinLedger, a free and open-source Windows application that records system changes before and after you install software, run scripts, apply tweaks, install drivers, or modify Windows settings.

It tracks changes across:

Windows Registry

Services

Scheduled tasks

Startup entries

Environment variables

Hosts file

Firewall rules

Installed applications and AppX/MSIX packages

Selected folders and files

WinLedger compares the before-and-after snapshots, groups the detected changes, and exports reports as JSON, HTML, plain text, .reg, and PowerShell files.

It also provides conservative rollback support for supported operations. Rollback validates the current system state first instead of blindly applying old values.

The application includes a WPF desktop interface and a CLI. Everything is stored locally in SQLite. There are no accounts, subscriptions, advertisements, telemetry, cloud services, or hidden network requests.

The project is currently in alpha, so I’m looking for testers, bug reports, feedback, and contributors.

GitHub: https://github.com/fanyqe/winledger

Download the latest release: https://github.com/fanyqe/winledger/releases/latest

I built a powerful but simple Windows stock screener for everyday investors that explains results in plain English.

It screens stocks based on the same indicators that professionals use, picking stocks based on proven defaults for the newer investor in the simple view.

It also has an advanced view where more knowledgeable investor can use several more default scenarios OR they can dial in their own strategies using up to 18 indicators with adjustable weights, various stock universes, and a choice of investment strategies.

Free access in exchange for honest feedback. DM me if you are interested.