All Projects
Browse and discover every tech product and startup launched on Stellar Launch.
Browse and discover every tech product and startup launched on Stellar Launch.

CADProps is a browser CAD viewer and converter. Open a DWG, DXF, STEP, or STL file and measure it without installing desktop CAD. The free tier covers 92 file extensions. Native files are processed on CADProps servers.A practical check is to open the file, measure one known length, and confirm units before you trust the rest. CADProps is freemium and is not a replacement for authoring in AutoCAD or SolidWorks.Disclosure: Ethan Tan is CTO of CADProps. https://www.cadprops.com/

CalculatorFox offers a library of over 1,300 free online calculators with step‑by‑step workings and cited sources, ready to embed on any website.Live calculations that update as you change inputsEach calculator shows its work and sources for transparencyFree to use; paid plans let you brand embeds and sync figures across multiple sitesWide range of categories: finance, health, math, fitness, construction, and moreSimple embed: three lines of code, no ads, no trackingIdeal for advisers, educators, businesses, and anyone needing quick, reliable calculations.
Call Monkey AI’s plumbing software is a complete field service management platform designed specifically for plumbing contractors and home service businesses. It consolidates the core tools plumbers need into one simple dashboard—drag-and-drop scheduling, professional estimates and invoicing, on-site payment collection via Square, customer CRM with full property history, time tracking, commission tracking, a customizable price book, and mobile access so technicians can manage jobs from the field. The system is built to replace the patchwork of apps many small and mid-sized plumbing shops currently juggle, offering everything under a straightforward pricing model with no per-user fees or hidden charges.A standout feature is the integrated 24/7 AI answering service, trained on real calls from plumbing, HVAC, and other trade businesses.

Calm is a Skill™ is a leadership and workplace development platform that teaches calm as a practical, learnable skill. Its programs translate nervous-system science, psychology and leadership experience into tools people can use to recognize pressure, regulate their responses and make more deliberate choices in challenging situations.Through leadership programs, workplace workshops, speaking, practical resources and the Calm Navigation System, Calm is a Skill™ helps individuals and organizations strengthen their ability to communicate clearly, navigate pressure, manage difficult interactions and make better decisions.Rather than presenting calm as a personality trait or promising to eliminate stress, the approach focuses on building practical capabilities that can be developed and applied in real-world situations. For organizations, this creates a framework for developing leaders and teams who can respond more effectively when pressure, uncertainty and competing demands are high.

Campus brings your repository, terminal, project knowledge, conversations, and AI agent work into one persistent workspace. Built around each project, it helps human teammates and agents share context, continue unfinished tasks, and avoid scattering work across chat threads, documents, tickets, canvases, and separate AI tools.

Cantian AI is an AI agent built on specialized skills for BaZi astrology, divination, feng shui, and naming, bringing traditional Eastern wisdom into the AI era. Instead of simply handing old texts to an AI, Cantian turns classics such as the I Ching and the BaZi classic San Ming Tong Hui into knowledge graphs and reasoning rules that the AI can read and apply. Specific use cases (compatibility reading, Liuyao divination, feng shui home setup, and Chinese name selection) are packaged as professional AI Skills that an agent can call.

Canva Craft is an independent AI image generator for design-first visuals. Turn a design brief into striking visuals with intentional composition, readable text, and details where they belong. Create and refine images up to 4K across multiple aspect ratios. Canva Craft is not affiliated with, endorsed by, or operated by Canva.

Capture Studio is an all‑in‑one screen recorder and video editor built for Windows, letting you capture any screen, window or region at up to 120 FPS and then polish the footage with a suite of professional tools.Timeline editing with live preview, titles, stickers, arrows, spotlights and keystroke overlay.AI‑powered features including automatic subtitles in 85 neural voices across 22 languages, AI avatars with lip‑sync, and voice cloning from a short sample.Enhanced cursor smoothing, click highlights, background replacement, privacy blur, alignment guides and noise‑cancelling audio.All processing happens locally on your machine — no footage ever leaves your PC — ensuring privacy and low latency.Supports Android screen mirroring, portable project export, and a range of export formats (Markdown, PDF, HTML, PowerPoint).Ideal for creators, educators, marketers and anyone needing high‑quality tutorial or promotional videos, Capture Studio combines performance, ease of use and advanced AI effects in a single desktop application.

Capvant gives business owners one simple request for comparing business funding options from matched third-party providers. Owners can review offers side by side—including rates, terms, total cost, working-capital, revenue-advance, equipment, and invoice-finance options—before choosing whether to proceed. Comparing options is free and does not affect the owner's credit score; a provider may perform its own hard check after an offer is accepted.

CapyToolkit is a growing collection of free, privacy-first browser tools. It started the way a lot of side projects do: a solo developer got tired of online utilities that demand an account, an upload, or an email address before doing ten seconds of work. So every one of its 50+ tools runs in the browser, and nothing you touch reaches a server.The catalog is deliberately practical. Hardware testers cover gamepad stick drift, mouse polling rate, dead pixels, webcam lighting, and microphone noise floor and latency. Developer and security tools cover JWTs, JSON, and photo metadata. Personal tools handle passport photos, image file-size limits, PDFs, phone-scanned documents, and receipt splitting. Nine categories in all: hardware, developer, security, audio, math, text, design, network, and personal.It runs as a website, an installable PWA, or a Windows app from the Microsoft Store, and works offline once installed. Always free, no account, and new tools ship regularly.

Cardify turns plain text, links and rough ideas into polished, shareable cards in seconds. Paste your content, pick a style, and get a clean, ready-to-post visual - no design skills, no dragging layers around.It is built for people who publish constantly: marketers turning blog posts into social cards, founders creating launch visuals, writers sharing quotes, teachers making lesson cards. The AI-assisted layout handles typography, spacing and color so every card looks intentional.Highlights:Paste text or a URL and get a finished cardAI-assisted layouts and copy polishMultiple styles and aspect ratios for every channelExport ready for X, LinkedIn, Instagram and blogsRuns in the browser, works in English and Chinese
CardShare.ai is an AI-powered platform that lets teams create beautiful group greeting cards in seconds. Users describe the occasion or upload a photo, and the AI designs the cover and drafts a heartfelt message. The card is then shared via a single link where teammates, friends, or family can add their own notes, resize, drag, rotate, and even attach GIFs. Once everyone signs, the card is delivered as a unified keepsake that can be sent via email, Slack, or any channel.AI-generated covers and messagesOne-link collaborative signingSlack integration via /cardshareai commandSupport for birthdays, work anniversaries, weddings, graduations, holidays, and moreNo account required for signers