Fri, Sep 18 · 148 submissions

#61

buy1minute

Buy a minute of the day for $1.

There are 1,440 minutes in every day, and each can belong to one person for $1. Your minute gets a permanent page and a 60-second spotlight whenever that time arrives around the world. Leave your mark on a moment, build its history, and wat...

Social Media, Marketing, Community, OpenAI Day
▲ 1 💬 1
#62

BYAMN

Learn, practice, and grow - all in one classroom.

BYAMN is a modern online learning platform built for students who want to learn, practice, and improve in one place. It combines structured courses, interactive quizzes, fill-in-the-blanks, coding tests, and learning progress tracking in a ...

Productivity, Education, Online Learning
▲ 1 💬 1
#63

PingCatchAI

The modern Google Alerts alternative. Track brand mentions.

PingCatchAI is an instant and free RSS keyword scanner designed for founders to monitor their brands in real time. Built on the edge using Astro and Cloudflare technologies, it ensures minimal latency alerts with no bloated media monitoring...

Analytics, Marketing, SEO
▲ 1 💬 1
#64

Photo OptiVert

Portable Image Optimization & Conversion Tool

This update adds HEIC support, expanding the supported format range to JPEG, PNG, GIF, WebP, AVIF, TIFF, SVG, and HEIC.

Productivity, Photography, Developer Tools
▲ 1 💬 1
#65

woolgather

Turn rough ideas into projects you can understand and build.

woolgather helps developers and makers turn scattered ideas into projects they can understand and build. Capture thoughts freely, develop them through focused agentic conversations, and keep decisions, sources, open questions and next steps...

Productivity, Developer Tools, OpenAI Day
▲ 1 💬 1
#66

Tang Nano 4K Video In

Turn NTSC composite video into color HDMI with a tiny FPGA

Open-source hardware that turns NTSC composite video into color HDMI on a Tang Nano 4K. One FPGA I/O plus a passive R/C feedback network acts as a one-bit ADC; sync and color decoding drive three line buffers and 640x480 HDMI—no external AD...

Hardware, Developer Tools, GitHub, Tech, OpenAI Day
▲ 1 💬 1
#67

Counterfactual

Test an idea against a world that can prove you wrong

Built with GPT-6 Astra in Codex, Counterfactual is a transport experiment lab where ideas face reproducible tests. Discover why a shortcut can slow everyone down, design custom networks, search road closures and upgrades, and challenge resu...

Education, OpenAI Day
▲ 1 💬 1
#68

Strata: Weather & Sky

Weather with atmosphere.

Strata turns a live forecast into a sky you can feel. Explore the hours ahead through changing light, cloud depth, and an immersive sense of place.

Android, iOS, Weather, OpenAI Day
▲ 1 💬 1
#69

Market Crisis

An anti-gambling financial story inside a living desktop

An anti-gambling financial narrative game inside a simulated desktop. Experience why investors chase rallies and panic-sell, and why expensive collectibles may have no buyers. Read group chats, old forum posts and news; trade fictional stoc...

Indie Games, Simulation Games, Education, OpenAI Day
▲ 1 💬 1
#70

Wise Routine

Makes room for your routine around your meetings

Choose what you want to make time for: deep work, a walk, a good stretch. Wise Routine finds room around your meetings and adapts when your day changes.

Mac, Productivity, Calendar, OpenAI Day
▲ 1 💬 1
#71

360º Photo Converter

New Use Case: Building 360 degree tours!

Formats 360º media (photos, movies) to be 360º in Facebook and YouTube. A new use case is making 360º educational tours. Prompt ChatGPT for an equirectangular image, put it into this tool, then post to Facebook. Include links to linked area...

Movies, Photography, OpenAI Day
▲ 1 💬 1
#72

Inza Club

Epic karaoke for free

Choose a song, sing your part, and see your measured practice score. Free to play.

Music, User Experience, Games, OpenAI Day
▲ 1 💬 1
#73

Rivetport

Keep your API contract. Replace your backend.

Rivetport helps teams move to a new API while preserving the contract their existing integrations depend on. Bring current and replacement API specifications into one workspace, review changes, test before publishing, and manage the transit...

Developer Tools, OpenAI Day
▲ 1 💬 1
#74

Jazz Tap

Play jazz with just a tap.

Tap anywhere to play jazz piano with bass and drums. Hold to sustain, release to let the notes fade. Jazz Tap takes care of the notes and chords—you bring the rhythm. No musical experience needed. Just open your browser and play.

Music, OpenAI Day
▲ 1 💬 1
#75

Vedic Timeline — Astrology & Numerology

Vedic Astrology Life Journey, Annual forecast & Numerology

Discover your authentic astrological life journey with Vedic Timeline. for personalised milestones across education, career, marriage, wealth, and health. KEY FEATURES: • Visual timeline from birth to golden years. • Real-time planetary tra...

User Experience, Education, Online Learning
▲ 1
#76

Web Frames

See what you designed, built, and where they drift apart

Web Frames is a native macOS workspace for reviewing real web interfaces. Put localhost, live URLs, and image references side by side on an infinite canvas. Map routes, inspect live DOM elements, leave code-aware comments, compare an implem...

Design Tools, Developer Tools, Vibe coding, OpenAI Day
▲ 1
#77

AtChurch

One single platform for all Christian needs.

AtChurch is the unified church management and Sunday school platform. Free attendance tracking, members directory, and ministry operations.

Android, Education, Spirituality
▲ 1
#78

RECLIO

Record your screen. Make it ready to send.

Record your screen, make it look great, and share it in minutes. Reclio is a native macOS recorder with backgrounds, zoom, cursor effects and MP4 export, with no cloud needed. Built for team training, tutorials and workflow demos.

Productivity, Marketing, Menu Bar Apps
▲ 1
#79

Business Directory Bangladesh

Directory ,Business Directory

hebabondhu.com is a business discovery and networking platform that helps businesses showcase their products, services, and capabilities while enabling other businesses to easily find reliable suppliers, manufacturers, distributors, and ser...

Marketing, OpenAI Day
▲ 1
#80

Notse

monitize your study notes

Global student platform for sharing study notes. Upload notes, earn coins, and access materials.

Education
▲ 1
#81

Quill - Write Your Book

The all-in-one writing platform built for authors

Quill now has the ability to be used on the web, mobile (iOS and Android), Mac Desktop, and Windows desktop!

Android, Productivity, Writing, Apple
▲ 1
#82

Video Studio Creating Powerful Visuals

Powerful Stories. Stunning Visuals.

Looking for engaging video content that represents your brand professionally? Lamas Empire delivers creative solutions through a dedicated Video production studio. We help businesses transform concepts, messages, and campaigns into compelli...

Marketing
▲ 1
#83

OutlierKit

Make Claude your a YouTube Strategist

OutlierKit helps creators, businesses and agencies grow on YouTube. You enter one channel from your niche. Competitor Studio scans thousands of channels in that space and shows you who leads it, which titles and lengths earn the most views,...

Analytics, Marketing, Streaming Services, OpenAI Day
▲ 0 💬 3
#84

ReviewMix

Google reviews and testimonials, together on your site

Get more Google reviews with printable QR codes and review links, reply to every review from one inbox, and embed Google reviews on your website. EU-hosted, free tier.

Marketing, OpenAI Day
▲ 0 💬 1
#85

Founder.page

Discover and follow the best founders on 𝕏

Discover and follow new founders on 𝕏 and see what they're working on. Home to over 600 founders already and growing fast. Free to list & updated daily

Social Media, Marketing, Startup Lessons, OpenAI Day
▲ 0 💬 1
#86

X-Radio.FM

Radio for Founders Building in Public

Live 24/7 radio for founders building in public. Hear launches, first dollars, and hard weeks posted on X, rewritten and read aloud by the host.

Social Media, Radio, Tech news
▲ 0 💬 1
#87

Fileloom: 200+ file types + handoff

Open 200+ file types. Share with no account.

A free Android file viewer. Opens PDF, EPUB, Office, HWP, comics, code and media. Local folders and Google Drive. Share between devices with a QR code. No ads, no account.

Android, Productivity, Tech, OpenAI Day
▲ 0 💬 1
#88

Sweep

Your floor turns green where you've vacuumed

Point your iPhone at the floor while you vacuum. Sweep follows the vacuum head and paints every strip you cover, right on your floor in AR. Finish and get a top-down map with the area in m². Works with any stick vacuum. No account, no video...

iOS, Home, Augmented Reality, OpenAI Day
▲ 0 💬 1
#89

Sojyn

Turn your layover into a connection.

Sojyn turns airport layovers into opportunities for real-world connection. Add your layover and discover compatible travelers at the same airport, on the same day, with overlapping time. Connect based on shared interests and goals, then cha...

Travel, Transportation, Business Travel
▲ 0 💬 1
#90

Fallow

Codebase intelligence for TypeScript and JavaScript

Run npx fallow audit in any TypeScript or JavaScript repository. Fallow builds a deterministic dependency graph, then reports unused code, cycles, duplicated logic, complexity, and architecture drift. Its changed-code gate blocks only findi...

Open Source, Developer Tools, GitHub
▲ 0 💬 1
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