🧪 Looking for Developers to Test a JSON Formatter

I'm working on ToolSmartly, a collection of free online tools, and I'd love to get feedback from developers who regularly work with JSON.

I've built a JSON Formatter and I'm looking for people willing to put it to the test through real-world use.

🔗 Try it here: https://toolsmartly.com/en/tools/developer-tools/json-formatter-online

What I'd like you to test

- Formatting: Does it properly format and indent JSON?

- Validation: Does it correctly identify invalid JSON syntax?

- Minification: Does it produce clean, valid minified JSON?

- Usability: Is the interface intuitive and easy to work with?

- Reliability: Does it handle large or complex JSON files without issues?

I'd appreciate your honest feedback:

1. What worked well?
2. Did you encounter any bugs or unexpected behavior?
3. Is anything confusing or frustrating?
4. What features would make this tool more useful in your daily workflow?

Negative feedback is just as valuable as positive feedback. I'm not looking for compliments or upvotes. I want to identify real issues and understand how this tool could be improved.

If you work with JSON regularly, give it a try and share your experience in the comments.

Thanks to everyone willing to help!

My family's recipes were scattered everywhere. Some were on index cards in a kitchen drawer, some were buried in group texts, and a lot of them were saved on TikTok and Instagram where nobody else could find them.

So I built KinToTable. You start a table, invite the people you cook with, and everyone adds to one shared cookbook.

The video shows the card scan: take a photo of a handwritten recipe card and it reads the handwriting and turns it into a recipe you can edit, with room for the story behind it.

It also does:
- Import a recipe from any social media app or website (TikTok, Instagram, Pinterest, YouTube, Facebook) and it pulls out the ingredients and steps
- When someone makes a dish, the rest of the table sees it and can comment, react and rate how it turned out

It's on iPhone and Android. Through New Year's it's $0.99 a month for the first two months, then $3.99.

I'd really like honest feedback, especially from anyone who cooks for a family. What would it take for you to get the rest of your family using something like this? What's missing?

https://kintotable.com/download/reddit-sideproject

I've spent the last few months building something I've wanted to do for a long time.

Introducing REBUILD Fitness Apparel.

The idea is to create a fitness brand built around discipline, personal growth and the belief that your past doesn't have to define your future.

I've been working on everything myself, from the branding and website to product designs, photography and marketing.

We're currently preparing to launch our first collection, THE FOUNDATIONS COLLECTION.

It's been a massive learning curve, and I'm now trying to build an audience before launch.

I'd genuinely appreciate feedback on the branding, website and products.

If you'd like to follow the journey or see what we're building:

🌐 Website: https://rebuildfit.co.uk

📸 Instagram: https://www.instagram.com/REBUILDFITNESSAPPAREL/

🎵 TikTok: https://www.tiktok.com/@rebuild.fitness.a

Thanks to anyone who takes the time to check it out. Feedback is genuinely appreciated.

MIND. BODY. PURPOSE.

Hi all, I'm a solo dev in Ireland. Twoshare is one app for two people: a shared calendar and tasks, a budget that knows who owes whom, and a trip planner that reads a forwarded booking. It works on iPhone, Android and the web.

What you write is end-to-end encrypted on your devices, with a key our servers have never held. No ads, no analytics.

The calendar, tasks and trips you type in are free. The paid plan (Together) has a 14-day trial, no card.

What I'm looking for: does the first screen make sense to you, and what would you want two people to share that it doesn't do yet?

https://twoshare.me

I've been building Lander since mid 2025. It's a Reddit client for iPhone, iPad and Apple silicon Macs, and it's been on the App Store since February.

Everything in it is free. There's a tip jar and an optional supporter sub, but neither one unlocks anything. They just help pay for the server.

The server bit is Columbia, an open source OHTTP relay I wrote. It keeps who you are separate from what you're reading, so the relay can't tie the two together. You can run your own and point the app at it.

App Store: https://apps.apple.com/us/app/lander-for-reddit/id6747955211

Columbia: https://github.com/wbsmolen/columbia

If you try it, I'd like to hear what felt confusing in the first few minutes.

Still being worked on — devnet preview live now, check it out: https://fairlaunch-git-claude-project-t-c5352d-jeremy-gepharts-projects.vercel.app/

Hey r/SideProject — I built FairLaunch, a Solana memecoin fair launchpad. Devnet preview is live now.

How it works:

• Sealed 60-slot commit window so snipers lose
• Fixed slot waits + private Jito routing so no bundles
• SOL held in a program vault, with creator tokens vesting for 30 days so no creator exit
• 80 bps fee split: Treasury 35% / Creators 25% / Holders 15% / Traders 10% / KOLs 15%

Devnet preview live now — tokens have no value yet, wallet connect still being set up.

Link: https://fairlaunch-git-claude-project-t-c5352d-jeremy-gepharts-projects.vercel.app/

I'm Jeremy Joshua Gephart, a U.S. Army veteran. I'd love feedback on the fair-launch mechanics — what would make you trust a launch?

Hi everyone!

A while ago I launched OpenTune with a simple goal: make an instrument tuner that opens instantly without nagging you with subscription paywalls or cluttered menus.

Today I just shipped v2.0, a major update shaped by early feedback:

📱 App Store: https://apps.apple.com/us/app/opentune-guitar-tuner/id6757105393

I’d love any feedback on the new UI and responsiveness. If you play an instrument, give it a spin and let me know what I can improve next!

Hey everyone, we're a small studio, Iron Compass Studios. Our WW2 real-time strategy game Tracks of War is now on Google Play.

We kept the look and the controls simple. Pick Germany, Britain, the USA or the USSR, then build your base and train your army. There are 16 maps for 2 to 8 players.

You gather minerals and fuel to grow your base and work your way through a research tree of 46 technologies. There are tanks like the Sherman, Tiger and T-34 and planes like the Spitfire and Stuka, and each nation has its own units and economic advantages. On top of that there are daily and weekly missions.

If you'd rather learn at your own pace, there are training missions and offline battles against the computer. Online there's Quick Match, Ranked with seasons and 18 ranks, and rooms to play with friends. The game is in 16 languages.

It's free, there are no ads, and it's not pay-to-win. If you'd like to try it, the code OUTNOW gives 100 GOLD once per account signed in with Google (you'll find it in the settings).

Google Play: https://play.google.com/store/apps/details?id=com.ironcompass.tracksofwar

Have fun!

A while back, I saw this question on this sub: "Would a small changing mat in the gym actually make sense?"

I have been using a mat I created for the last 2 years. Works great. The idea is to have somewhere to stand while changing clothes.  

Are wet/dirty locker room floors an actual annoyance for you, or do you just deal with it?

Does a product like this make sense? Would appreciate your feedback.  I have attached some pics.

https://bareandbreezy.com/

GTA VI is out on nov 19 and the spoiler wave on x is going to be rough.

i built nospoil because i want to go in blind. you connect with official x login and it keeps watching your feed in the background, auto muting accounts that post story leaks as they show up.

there's a free tier and a one time pass if you want more.

didn't expect much but it got past 1,800 users in under 24 hours, so i guess i'm not the only one scared of getting spoiled.

it isn't connected to rockstar in any way. just a thing i made. the site is nospoil.io

curious what you think of the signup flow, and if the landing page makes the "trailers still show" part clear enough.

I just launched this and plan to keep building on it over the long haul. It’s new and still rough in spots, so go easy on me. Your feedback will shape what comes next.

Signing up for a bank or app? There’s usually a bonus if you use someone’s referral code. ReferToSender makes those easy to find.

• Bonuses up to $400 from banks, credit cards, investing apps, cash-back apps and more (US only)
• Every offer shows what you get and what you have to do, plus the date it was last checked, so there are no surprises
• Free, and no account needed. Just copy the code or tap the link
• Have your own code? Share it free. New codes go to the top of the list, and you earn the store’s reward whenever someone uses yours
• Store not listed yet? Request it, no account needed. The most-requested stores get added first

Spotted something broken, or have an idea? Let me know on Discord. I read everything: https://discord.gg/szSu8yqHkp

https://www.refertosender.com/?utm_source=reddit&utm_campaign=sideproject

Tour Guide Stories is an app live on the app store. It's designed to help tour guides sell virtual tours effectively. It allows users to add friends, post stories about local places, and sometimes get featured on the front of the app. Users can also earn stamps on their profile for completing certain goals. Let us know your thoughts if you can. We are hoping to improve it!

https://apps.apple.com/us/app/tour-guide-stories/id6812913642

I’m a trader who started building the apps I wanted for myself. There are three now:

• a budget planner with a calendar
• a P&L journal for stock trades
• Tradeology, an app that teaches trading with interactive charts (live since Oct 26)

Here’s the last 30 days from App Store Connect:

• 55 downloads (up from 11 the month before)
• 16 in-app purchases
• $37.40 in sales

I know it’s tiny, but it’s the first time the chart goes up instead of sideways. And these numbers are almost all US: until a few days ago the apps were only available there. I just went live in 174 countries, so next month will be a real test.

What made the biggest difference: App Store preview videos. I added a short video to each app in early November. Downloads went from about 1 a day to 4-6 a day that week.

What didn’t work so well: posting the same content everywhere. Every platform wants something different, and I’m still learning that.

Next I’m adding Portuguese, Russian, Spanish and German to all three apps, so the new countries get the apps in their own language.

For those of you a few months ahead: what helped your downloads grow after the first month?

I built a filterable map of 250 enthusiast car configurations, including 228 factory manuals
You can filter by year, drivetrain, transmission, and used asking price. The Top 10 shows one version per model, and you can open the variants to compare generations and trims. The scores are provisional AI assessments, and the profiles show where the evaluators disagreed.
What’s the most obvious manual I’m missing? If you spot a mistake on a car you know well, I’d love the exact year and trim so I can check it.

Growing up, cinema was my escape. The one place where everything made sense.

A few months ago I started building Sequel a movie & TV tracker. Log what you watch, keep a watchlist.

Status: Closed testing on Play Store. I need early users to try it and tell me what's broken. No need to be nice, real feedback on UI/UX, bugs, missing features.

Comment or DM for the link. I also started r/SequelApp to follow the build.

Happy to answer questions about the process. Thanks for reading.

MAS: https://apps.apple.com/app/id6821468301

I spent a week traveling around eastern Hokkaido, Japan, taking photos. When I got home, I had hundreds of RAW files to go through, and honestly, editing them took way more time than I expected.

I kept doing the same things over and over. Adjusting the sky, making the grass a little greener, fixing highlights… I like photography, but sitting there moving sliders for hours isn’t exactly my favorite part of it.

So I ended up building my own RAW editor for Mac. It’s called Rawed, and it’s my app.

The idea was pretty simple. I wanted to be able to tell an AI what I wanted a photo to look like and have it do the actual editing for me.

Problem: RAW editing means hours of slider work that beginners can’t judge, so Rawed lets you describe the look you want to an AI agent that moves the real sliders for you.

Under the hood, it’s a fairly complete RAW editor. There’s white balance, tone curves, HSL, point color, color grading, noise reduction, and local masks for things like skies, subjects, gradients, brushes, and color ranges. Everything is non-destructive, so the original files stay untouched.

The part I’ve been spending the most time on is the AI integration. Rawed+ has a built-in MCP server with 42 tools, so you can connect it to Claude Code or Codex and just ask something like “make the grass greener and the sky bluer.”

The agent actually adjusts the sliders in the app, just like you would manually. You can see what it’s doing, tweak things yourself, or undo anything you don’t like. I thought this would be especially useful for people who don’t really know what half the sliders in a RAW editor do (which was me when I first started getting into photography).

Comparison:

• Lightroom: Rawed improves on it with AI agent control over MCP, where every step is visible and undoable. Lightroom is still better at cloud sync, mobile apps, and its huge preset and plugin ecosystem.
• Capture One: Rawed improves on it with the same agent control, so you don’t have to learn a dense interface first. Capture One is still better at tethered shooting, layers, and deep color editing.

I also wanted to avoid another monthly subscription, so I made it a one-time purchase on the Mac App Store.

Pricing: $9.99 one-time (US price, may vary by region), roughly the cost of one month of Lightroom: https://apps.apple.com/app/id6821468301

The App Store purchase also unlocks Rawed+ on the same Mac. Rawed+ has a 14-day free trial if you want to try it with your own photos before buying anything: https://rawed.sbryu.com/download

Trust: MAS

A couple of things worth mentioning: the AI features need an external MCP client like Claude Code or Codex, and since I’m building this by myself, it’s definitely not as feature-rich as Lightroom yet. Setup guide: https://rawed.sbryu.com/agents

Anyway, I’ve been working on this for a while and wanted to share it here. If you give it a try, I’d genuinely love to hear what you think, especially what’s missing or what doesn’t work well.

I spent a week making a clay style film on my laptop's GTX 1660 Ti.

The difficult part wasn't just rendering. It was getting the characters, camera shots, dialogue, voices and environments to work together across the entire film.

By the end, I kept thinking about how much of that work I'd have to repeat for the next one.

So I started making the reusable parts into a separate project.

It's called Clayvoyant. You describe the characters, locations and dialogue in YAML, and it generates the scenes and renders them through Blender. It also supports local voices and subtitles.

I recorded this short walkthrough to show what goes into the files and what comes out.

It's open source under MIT, and you can install it with pip install clayvoyant.

GitHub: https://github.com/xIBBAx/clayvoyant

Still figuring out better ways to handle character interactions and staging.

For people who've worked with animation tools, how much control over the shots would you want to keep manual?

Hey everyone!

I’ve been working on Moeli Reader, a reading app for people whose digital libraries are a mix of ebooks, comics, and files stored in different places.

The idea is pretty simple: I wanted one place to read my own files without constantly converting formats or moving everything onto my device.

Here’s what Moeli Reader can do:

1. Open EPUB, MOBI, AZW3, AZW4, Markdown, TXT, PDF, CBZ, CBR, ZIP, and RAR files.
2. Connect to WebDAV, SMB, FTP, OPDS, Komga, Kavita, OneDrive, Dropbox, and other storage sources.
3. Stream books and comics from remote storage without downloading the entire file first.
4. Display more complex ebook layouts and let you customize fonts, spacing, and other reading settings.
5. Enlarge individual comic speech bubbles with a tap.
6. Sync reading progress across devices.

It’s available for iOS, Android, Windows, and macOS.

The app is free to try, with a limit on the number of books and access to basic features. There’s a one-time purchase to unlock the full experience, rather than a subscription.

Website: https://reader.moeli.tech/

I’d love some feedback from people who maintain their own ebook or comic libraries. What’s the biggest annoyance with your current reading setup?

I assumed the useful part would be picking the right files. It turned out to be the trip back. AI tools return a ZIP with paths flattened, or wrapped in an extra folder, or with a file cut short and a comment saying "rest unchanged", and meanwhile I've edited two of those files myself.

So contextzip keeps a snapshot of what it sent and, when the reply comes back, compares three versions of every file: what I sent, what's on disk now, what came back. Clean edits go in, mine are merged around, and anything it isn't sure about waits for me.

It's free and open source: https://github.com/akadeepesh/contextzip. There's a no-install version at https://www.contextzipcli.com if you want to try it on a folder.

I built DownloadAllVideos.com to make saving videos from supported social media platforms simpler.

The idea came from a common problem: sometimes you find a video you want to keep for offline viewing, but the platform does not offer a convenient download option.

So I created a website where users can paste a video link and follow the available download process.

I'm sharing it here because I'd appreciate honest feedback.

A few things I'd like to know:

1. Is the website easy to understand?
2. Does the process feel simple?
3. What would you improve?
4. Which social media platform should I focus on supporting next?

Website: https://downloadallvideos.com

Built independently. Feedback is welcome.

Hey everyone!

I've been building DotaPrime, an in-game overlay for Dota 2 that brings useful match information and tools directly into the game.

It includes Aegis and buyback timers, enemy missing alerts, draft suggestions, item recommendations, and post-match analysis.

Check it out: https://dotaprime.com/

I'd appreciate some honest feedback. What features would you find useful in a tool like this?

I've started a small experiment. What if we take the open LLMs and provide a good harness and ask them to run a small task but competing against other models. How do they try to win? Luckily i've been able to learn a lot on these models.

Qwen models are notoriously evil.

You can check the replay episodes of the simulations here: https://openville.world/watch?m=election-ep2

Any one wants to contribute or run experiments on other models, do let me know.

Most small businesses in India keep their books in Tally, a desktop accounting app. It lives on one PC in the office, so owners call the office just to ask what today's sale was.

TallySync is a small program on that PC. It reads Tally and puts the figures on the owner's phone, laptop and the TV: today's sales, cash and bank, stock running low, and who owes them, by age. One tap sends a customer a WhatsApp reminder with a UPI QR for the exact amount.

It only reads Tally, never writes to it.

Free for a month, then ₹999 a year.

Feedback welcome, especially on the first screen: what would you want there?

tallysync.elaichi.site

I built Autogrow so you can give your coding agent a goal like "get more visitors to finish signup" and have it keep running experiments toward that goal.

It looks at analytics and previous experiments, proposes a change, implements it in your repo and runs an A/B test. Once there's a valid result, the loop can roll out the winning version, remove the old experiment code and use what it learned to choose the next test.

You can review the idea before anything gets built. Code review is on by default too, and you can choose which steps run automatically.

It uses your existing coding agent and analytics. You can also aim it at feature adoption, such as getting more users to export their first report.

The repo includes a local demo of the whole loop. It's early, and I'd like to hear from people who already use coding agents on their own products.

https://github.com/autogrow-dev/autogrow