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.

UGCad AI is an AI-powered platform that generates authentic creator-style video ads for e‑commerce and DTC brands in minutes.AI UGC Video Ads: Turn any product URL or script into lifelike avatar‑driven ads.AI Twin Generator: Create a digital twin of yourself to represent your brand at scale.URL‑to‑Video: Paste a product link and let the AI fetch content, write the script, and build a ready‑to‑run ad.Multilingual Support: Produce ads in over 75 languages and accents.Built‑in Video Editor & Campaign Management: Add captions, B‑roll, music, and publish directly to TikTok, Meta, or YouTube Ads Manager.Ideal for performance marketers, Shopify merchants, dropshippers, and agencies seeking fast, low‑cost ad creative without filming or agencies.
AIQualityHQ is a free, browser-native toolkit designed for AI developers, QA teams, and prompt engineers to measure, improve, and trust every AI interaction. It provides a deterministic, client-side engine that runs entirely in the user's browser, ensuring 100% privacy, zero API costs, and instant results under 10ms.Prompt Rewriter & Compiler: Refactor and compile prompts for optimal performance on Claude, Gemini, and GPT models.System Prompt Generator: Synthesize production-grade LLM system prompts with role parameters, JSON schemas, and anti-leakage constraints.Prompt Checker: Score prompts across six core dimensions — structure, memory & state, context grounding, trust & accuracy, PII & privacy, and security & safety — with diagnostic rule analysis.Prompt Optimizer: Reduce token length and estimate multi-model cost savings through heuristic trimming.Injection Scanner: Detect multi-vector prompt injection and red-teaming threats, including DAN jailbreak patterns.AI Jailbreak Detector: Perform 4-tier hybrid edge threat scanning with sub-25ms response times and cryptographic attestation.AI Auditor: Audit LLM response accuracy, test automation execution, and validate llms.txt standards for enterprise readiness.The tool is ideal for pre-deployment validation, CI/CD pipeline integration, and regulated industries (healthcare, finance, legal) where data must never leave the device. By replacing LLM-based prompt graders with a deterministic rules engine, AIQualityHQ eliminates variability, latency, and data exposure risks.

The UK Corporation Tax Calculator is a free, no‑sign‑up online tool that helps UK limited companies compute their corporation tax liability for the 2026/27 tax year, including marginal relief for profits between £50,000 and £250,000. Instant calculation of tax payable, effective rate and profit after tax. Supports entry of accounting period length and associated companies to adjust thresholds. Scenario planner lets users compare up to three profit levels for salary vs dividend planning. Clear display of payment and filing deadlines based on year‑end date. Educational explanations of how corporation tax works, marginal relief formula, and associated‑company rules. Targeted at entrepreneurs, finance directors, and accountants, the calculator delivers quick, accurate insights to support tax‑efficient decision‑making without any cost or registration.

The UK Dividend vs Salary Calculator is a free, no‑sign‑up web tool that helps UK limited company directors determine the most tax‑efficient mix of salary and dividends for their personal income.It calculates income tax, National Insurance, dividend tax and corporation tax in one place, using the latest 2026/27 rates (including dividend allowance, tax bands and corporation tax marginal relief). Users can input company profit before salary, other personal income, employer pension contributions and director NI status to see side‑by‑side comparisons of three strategies: pure salary, pure dividends and an optimised split.Key features:Updated for April 2026 dividend tax rates and 2026/27 income tax/NI bands.Salary planner tab lets you drag a slider to see how different salary levels affect total tax, net take‑home and effective marginal rates.Incorporates corporation tax marginal relief (26.5% rate in the £50k‑£250k profit band).Shows impact of employer pension contributions on tax efficiency.Provides clear explanations of how salary and dividends are taxed, including the 60% tax trap and dividend allowance.Target audience: UK limited company directors, contractors and small business owners who need to optimise their remuneration strategy to minimise personal tax while remaining compliant.Value proposition: By modelling different salary/dividend splits, directors can avoid overpaying tax by thousands of pounds each year and make informed decisions about profit extraction, pension contributions and mortgage applications.

The UK Redundancy Pay Calculator is a free, instant online tool that helps employees quickly determine their statutory redundancy pay, notice pay, and total redundancy package according to the 2026/27 UK statutory rates.Calculates statutory redundancy pay based on age, length of service (max 20 years), and weekly pay capped at £751 (England, Wales & Scotland) or £783 (Northern Ireland).Includes the £30,000 tax‑free threshold, accrued holiday pay, and notice pay (statutory vs contractual).Provides a week‑by‑week age band breakdown and shows tax‑free vs taxable portions.No sign‑up required; works directly in any web browser.Ideal for employees facing redundancy, HR professionals, and anyone needing a quick, accurate estimate of their entitlements.

Calculate your net salary after Income Tax, National Insurance contributions, pension deductions, and student loan repayments with confidence. Whether you are an employee, contractor, freelancer, or job seeker, this calculator provides an accurate breakdown of your take-home pay on a monthly and annual basis. Understand how deductions affect your earnings, compare salary offers, and make smarter financial planning decisions.

The UK VAT Calculator is a free, client‑side web tool that lets users instantly add or remove VAT at the standard 20%, reduced 5% or zero 0% rates.Key features include:Add or remove VAT with a single click.Rolling 12‑month VAT registration threshold tracker (£90,000 for 2026/27).Flat rate scheme calculator to compare standard vs. flat‑rate VAT payments.Up‑to‑date HMRC rates and thresholds for the 2026/27 tax year.No data is sent to any server – all calculations run in the browser.Completely free, no sign‑up required.Ideal for small businesses, freelancers, contractors and anyone needing quick VAT calculations or threshold monitoring.

AI PDF Reader is an interactive reading companion that turns any dense PDF into a guided, page‑by‑page tutoring experience.Render each PDF page as an image so equations, figures, and layouts stay crystal clear.A vision‑language “friend” walks you through the current page in plain, friendly language — by voice or text.You explain the next step back; the system checks your understanding and adapts.Features include Buddy mode (no quizzing), Tutor mode (progress tracking), region snipping, full‑duplex voice, autoplay walkthrough, and customizable reading themes.Target audience: students, researchers, professionals who need to truly understand papers, textbooks, specs, or contracts.Value proposition: makes hard material warm and easy, letting you learn at your own pace with a patient AI companion.

Seeddance is an all-in-one AI creation platform that brings today's leading video and image models — Seedance 2.5/2.0, Kling, Hailuo, Seedream, GPT Image and more — into one workspace. Generate cinematic videos from text or images, create and edit images, build node-based visual workflows in Canvas mode, or let Agent mode plan and batch-generate for you. No queue, no watermark, free credits for new users, and commercial use on eligible plans.

Clear Cited provides full‑stack AI Search Optimization (AEO/GEO) for DevOps, developer tools, and B2B SaaS companies.Measures share‑of‑model across five major AI engines (ChatGPT, Perplexity, Claude, Gemini, Grok) with 95% confidence intervals.Builds an SEO foundation (technical SEO, Core Web Vitals, backlinks, schema) that supports AI‑answer visibility.Creates answer‑first content, comparison & benchmark pages, and schema‑marked articles published across 30+ channels.Earns off‑site authority via curated directory listings, G2, Reddit, and digital PR.Offers a free teardown, paid audits, and done‑for‑you retainers (Growth, Scale, Authority) to continuously improve AI visibility.Target audience: DevOps teams, developer‑tool vendors, B2B SaaS providers seeking to be recommended by AI assistants when buyers ask for the best tool in their category.

WearMeNow is an AI-powered virtual try‑on solution designed for Shopify merchants. Enables shoppers to see how clothing items look on themselves using a smartphone or webcam. Utilizes advanced computer vision and generative AI to generate realistic fit simulations. Seamlessly integrates with Shopify stores via a lightweight app install. Reduces return rates by improving purchase confidence. Boosts conversion rates and average order value through interactive shopping experiences. Target audience: fashion and apparel brands, boutique owners, and any Shopify store looking to enhance the online shopping experience. Value proposition: Increase sales, decrease returns, and differentiate your store with cutting‑edge AI try‑on technology.
Weave connects to your GitHub and your AI coding tools and turns both into one picture of how your engineering org actually works. On the output side, Weave normalizes work into comparable units so you can see output per engineer, per team, and per component, then benchmark it against thousands of comparable orgs instead of against your own gut feel. On the cost side, Weave captures token spend from Claude Code, Codex, Cursor, and any AI gateway, then breaks it down by engineer and by model. Line by line AI attribution shows how much code came from a person and how much came from a tool, so cost per unit of output becomes a number you track rather than a number you guess at. Weave also includes Wooly, a research agent with access to your data and our docs, an MCP server and API for pulling metrics into your own workflows, and a router that sends simpler prompts to cheaper models and reports exactly what you saved.