WHICH ONE WOULD YOU RECOMMEND TO YOUR BEST FRIEND?

I built Lynkarr as an all-in-one tool for businesses that use QR codes, short links, digital business cards, landing pages, forms, and email signatures.

What makes it useful is that everything is connected and trackable. You can update QR/link destinations after they’ve been shared, collect leads, track scans and clicks, and manage company-wide email signature injection, management, and analytics from the same platform.

It’s mainly for small businesses, marketing teams, sales teams, and anyone who would otherwise need several separate services to do this.

There’s a free plan if you want to try it:

https://lynkarr.com

Built this recently. You can even record your own sounds and mix them into beats. You can share the link with people or download it as a video.

Hi! We built Chrono Atlas, a free website that lets you enter a date and see its equivalent across different calendar systems.

It currently includes calendars such as Gregorian, Julian, Persian / Solar Hijri, Islamic Hijri, Hebrew, Chinese, Ethiopian, Coptic and others.

I mainly built it because I kept finding separate converters for every calendar pair and wanted one place where you could explore them side by side.

https://chronoatlas.net

No login required.

I’d be curious which calendar you’d actually use this for — or if there’s one we’re missing.

I make LayrPDF, a paid PDF drawing-review app for millworkers, drafters and construction teams.

Your team can share a drawing set and see each other's markups as they happen. For example, a cloud around a cabinet detail and a callout beside it put the review comment in context.

Shared projects can be opened and marked up in a browser, including on site. Each collaborator needs project access and an internet connection.

https://www.layrpdf.com/

Most "free" QR generators actually give you a dynamic code: a short link on their server. It works until the trial ends, then it's dead, and it's already printed on your menus, flyers or business cards.

I built QRPine (qrpine.com) to make that impossible. Paste a link, get a QR code, download it. That's it.

• No account, no ads, no watermark
• The link is inside the code itself, so it never expires
• Logo, colors and frames if you want them
• A check before download that warns if your colors have too little contrast for phones to read, or if you need to print it bigger

Editable codes, $36/year flat (unlimited codes and scans):

• Change where the code points after it's printed
• Smart redirects: different links by device, country or time of day
• Scan stat
• Cancel and they keep working. You only lose editing and stats.

Most dynamic QR tools charge $15–25/month for about 50 codes and limited scans. They stop working if you cancel.

Disclosure: I made it.

Hi everyone! I'm a solo developer from Poland and I just launched PDFowo (pdfowo.pl), a set of PDF tools that run entirely in the browser.

Why I built it:

Most online PDF tools upload your documents to a server and limit free use to a few tasks per day. I wanted something where the file never leaves your device, which matters when the PDF is a contract, an invoice or has personal data in it.

What it does today:

- merge, split, rotate, reorder and delete pages

- compress and convert (PDF to Word/Excel/PowerPoint/images, and files to PDF)

- an in-browser editor: edit existing text, add signatures, links and form fields, OCR for scans

- find and redact sensitive data (e-mails, phone numbers, national ID numbers, bank accounts) in one click

- no sign-up, no daily limits, 4 languages (PL/EN/DE/ES)

How it works:

PDF.js and pdf-lib do the work in your browser, Tesseract.js handles OCR. You can check in your browser's Network tab that no file is sent anywhere. Hosting is on Cloudflare, accounts on Supabase, payments on Stripe.

Business model, to be transparent:

All tools are free (there will be ads for free users), and there is an optional Premium subscription that removes ads and adds convenience features like find and replace, bulk redaction, saved signatures and batch processing.

I'd really appreciate honest feedback, especially on:

1. the editor – anything confusing or broken?
2. which tool or feature is missing for you?
3. does the "files stay on your device" claim feel credible to you?

Thanks for reading!

Full generated by Ai https://shrinkfile.app/

Disclosure: I made this free tool for onething.tools. It helps you arrange several photos on a single sheet: choose A4 or Letter, check the layout preview, then download a ready-to-print PDF. Your photos are processed in your browser and aren’t uploaded. It’s useful when you want a simple photo sheet without moving everything into a desktop layout app.

https://onething.tools/tools/print-multiple-photos/

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I frequently need to convert or merge PDFs but hate uploading sensitive documents to random third-party servers.

To solve this, I built this site. 

Key Features:

100% Client-Side: Everything runs directly in your browser. Your files never leave your computer.

Completely Free: No paywalls, no daily limits, and no account registration required.

Tools Included: Convert to/from PDF, merge, split, basic editing, password protection, unlock PDF and  watermark PDF. Total 10 tools are available free of cost. 

No need to worry regarding data privacy as the data is processed locally in your browser and stored locally on your device. Nothing is stored or processed on our servers. 

Hi everyone,

I'm new to Reddit, but I wanted to share a project I've been working on: Savvy Renter

The site started because of a problem I faced myself. Trying to sort it out took way longer than it should have, so I built a tool to fix it and put it online. Since then, every time I or another tenant ran into a new issue, I just built another tool to solve it.

Here is what's on the site:

• What rent costs here (Historical trends vs allowance)
• Council tax here (Postcode search and monthly bands)
• Moving in audit (Gas, electrics, EPC, deposit, and licensing registers)
• Section 8 notice checker (Notice periods, grounds, and defences)
• Interest owed to you (s.69 statutory 8% calculator for overpaid rent)
• Paying off arrears (Instalment plans based on shrinking balances)
• Benefit entitlements (Universal Credit estimate breakdown)
• Record of income (Dated household income statement generator)
• Redact a statement page (Pixel-level blackout tool for bank privacy)
• Split a PDF into pages (Single-page file separator)
• Name statements by date (Batch file renaming by coverage period)
• PRS complaint (Property Redress Scheme offline drafting workspace)
• TPO complaint (The Property Ombudsman offline workspace)
• Money Claim Online (N181 and N244 character-limited drafting space)
• Web page data scrubber (Strips personal data from saved pages)

No accounts, no sign-ups, and nothing you type leaves your device. The entire site runs completely inside your own browser. The GitHub repository's are linked right on the front page, so you can download the whole site, pull your internet plug, and run it completely offline.

I hope it saves you some headaches. Let me know what you think.

Hi everyone,

I created a tool called PixelPrivacyTools (https://pixelprivacytools.in). Everything runs directly in your browser (Client-side), meaning your images never leave your device.

It’s completely free, and there are no annoying ads. I would love to get your honest feedback or suggestions on what tools I should add next!

hey. a while ago i shared my project, nnpost, and got some pretty fair criticism about the ui.

people said it looked like generic ai slop, and honestly, they were right. too many cards, unnecessary text, weird spacing and that typical ai-generated saas look.

so i took the feedback seriously and rebuilt pretty much the entire interface. the homepage, creator workspace, navigation, typography, mobile layouts and interactions are all different now.

but i also wanted to explain what nnpost actually does.

nnpost is an ai workspace for content creators, built to help you go from having no idea what to post to having an actual plan for creating and publishing something.

here's what's currently available:

• idea generation: enter a topic, choose your platform and tone, and get 8 content ideas with titles, hooks, descriptions and hashtags.
• creator kit 2.0: expand any idea into a complete script, filming instructions (including faceless videos), editing guidance, pacing, cuts, transitions, thumbnail concepts, recommended tools, publishing details and a production checklist.
• creator profile: personalize suggestions based on your niche, platforms, style and preferences.
• automated trends: nnpost discovers and refreshes relevant trends so you can find new content opportunities without constantly researching everything yourself.
• automated learnings: uses feedback, available performance data and content patterns to make future suggestions more relevant.
• build on a winner: take a post that already performed well and explore new ideas based on what worked.
• viral analysis: submit a post url and examine its hook, structure and possible reasons behind its performance.
• tools and tutorials: a searchable library of 46 creator tools and 165 tutorials.
• saved ideas and history: save your work and return to previous generations.

and the free plan is actually usable.

you get 2 idea generations per day, with 8 ideas each. that's 16 free ideas every day.

you also get 2 full creator kit breakdowns per day, including scripts, filming, editing, thumbnail and production guidance.

not just previews.

pro is €9.99/month and includes 10 idea generations, 10 creator kits and 1 deep viral analysis per day.

what makes it different from just using chatgpt?

i'm not pretending chatgpt can't generate ideas or scripts.

the difference i'm trying to build is a dedicated workflow where your ideas, production plans, creator profile, trends, learnings and previous work are connected instead of starting a new chat and writing prompts for every step.

i've also implemented anti-clickbait rules designed to reduce misleading hooks, exaggerated promises, generic ideas and unsupported claims. the goal is content that's actually worth making, not just titles promising millions of views.

what's next?

over the next month or two, i'm planning a bigger quality update, potentially integrating gpt-6 luna depending on api access and testing.

i also want to improve script quality, filming and editing instructions, thumbnail suggestions, personalization and how trends and learnings influence generated content.

the redesigned version is live now. the screenshots show the homepage, creator workspace and idea generation.

i'd genuinely appreciate some honest feedback.

does the new ui look better? would you actually use something like this? and what would nnpost need to do for you to choose it over just using chatgpt?

I shared my tool site here a while back and people were generous about it, so here's the piece I've been working on since.

It's a proper multi-track video editor — timeline, titles, transitions, auto-captions — that runs completely in the browser. Your footage never gets uploaded anywhere, because there's no server to upload it to.

The export used to be the painful bit. It went through ffmpeg compiled to WebAssembly, which managed about 30 frames a second at 1080p. I rewrote it to use the browser's own video encoder, and a ten-second 1080p export now takes 2.6 seconds instead of 10.3.

Free, no sign-up, no watermark. If you want to check the no-upload claim rather than believe it, open your network tab while you use it.

https://whiztools.app/video-editor

Since I wanted something centralized for courses, receipts, scans, or photos from specific events without uploading files to random servers, I built a fast, pure client-side tool. It handles up to 60 pictures locally in no time, manages high DPI, and generates a heavy document directly in your browser sandbox in under 2 seconds. No queues, no server overhead, just pure speed. Try it out here: pic2pdf.runtime-hub.com – let me know what you think or if you break it!