Image Optimization for Modern Web Applications: Formats, CDNs, Automation
Images account for 50-70% of a typical web page's weight. Optimizing them properly — choosing the right format, generating responsive sizes, automatin…
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Turn any company website into structured B2B data (one API call)
If you've ever needed to go from a company's website to clean, structured data — its name, sector, a short description, social links, a contact email,…
Migrating From Transactional Email to Agent Accounts
This is what most agent email code looks like today: // SendGrid / Resend / Postmark — outbound only await sendgrid . send ({ to : " prospect@example.…
My SaaS Idea Scraper Surfaced 583 Demand Cards This Week — 3 Ideas Worth Building
I run DemandRadar, a scraper that hunts for SaaS ideas by analyzing demand signals across the web — Reddit, Product Hunt, payment discovery data, the …
Finding Product-Market Fit: A Data-Driven Framework for SaaS Founders
Product-market fit is not a binary milestone — it is a measurable state where your product solves a problem so well that users return organically and …
The Builder's Advantage: Why Constraints Are the New Superpower
There's a myth that the best products come from unlimited resources. Big teams. Big budgets. Big time. The reality in 2026 looks nothing like that. Th…
Сервер работает. Продукт — уже нет
Большинство команд следят за серверами, базами данных и доступностью приложений. Но самые дорогие инциденты часто происходят совсем в другом месте. Ис…
Building Adal: predictable webhook delivery without black boxes
Hi DEV community, I'm Yuriy, a fullstack developer and DevOps engineer with 10+ years of experience. I'm currently building Adal — a webhook delivery …
AI Output Provenance for SaaS: Trace Answers Before They Become Liability
An AI answer can look clean, confident, and helpful while hiding the exact detail your team will need later: where did this claim come from? For AI Sa…
I Catalogued 93 AI Tools for Service Businesses. Two Categories Had Zero.
I Catalogued 93 AI Tools for Service Businesses. Two Categories Had Zero. Tags: AI, SaaS, Startups, Entrepreneurship, Small Business I built a cross-a…
The End of Vibe Coding: Why I Switched to Structured AI Workflows
The End of Vibe Coding: Why I Switched to Structured AI Workflows I spent 3 months "vibe coding" my SaaS. Then I realized I was spending more time fix…
We Tracked 1M LLM API Calls — 60% Were Wasting Money on the Wrong Model
Key Takeaways 82% of developers default to OpenAI GPT models (Stack Overflow Developer Survey, 2025), but 60-70% of production API calls don't need a …
Does Churn Prevention Ignore Your SaaS Payments? The Overlooked Leak That Bleeds MRR Monthly
This article was originally published at https://saastools.corenk.com/articles/does-churn-prevention-saas-payments You logged into Stripe to check mon…
I am building a PDF API because every codebase I touch has a haunted PDF service
There is a file in almost every backend I have worked on. It generates PDFs. Invoices, mostly. Sometimes reports or certificates. It was written years…
Salesforce Data Hygiene: How to Keep Your CRM From Lying to You
Your Salesforce org is only as good as the data inside it. That sounds obvious until you watch a forecast built on stale close dates, or a rep chase a…
How I built a switchable AI provider system in Next.js (Gemini GPT-4 Claude, one workspace setting)
I had Gemini hardcoded into every AI function in my codebase. Then a beta user told me her clients have data policies about Google. I rebuilt the whol…
What I learned building an AI chatbot for websites and docs
I’ve been building an AI chatbot for websites and docs for about 6 months For the last few months, on and off, I’ve been building a side project calle…
Cross-Cultural UX: Designing SaaS Interfaces for Global Users
A SaaS interface that works well for US users may confuse or alienate users in China, Germany, or Japan. Cultural differences affect everything from l…
How I built an API monitoring tool with FastAPI, SQLite, and a Telegram Bot
I come from a mechanical engineering background and started building with Python to solve real problems. Last month I launched PingMon — an API monito…
I Built an AI SaaS That Analyzes Websites and Tells You Why You’re Losing Customers
Today I want to share a project I built called Boostora 🚀 It started as a simple idea: “What if businesses could instantly understand why their websit…
Building a Context-Aware Onboarding System in Next.js
When I started building TourKit, I thought onboarding tours would be the easy part. Create a few tooltips, highlight some elements, and move users fro…
The Invisible Tax Every Oracle-Database Enterprise Pays
What it really costs when nobody can say exactly what happened inside your critical systems, and why that cost never appears as a line item. Series · …
2026 Enterprise AI Development Costs: What Companies Actually Pay (Based on Real Projects)
2026 Enterprise AI Development Costs: What Companies Actually Pay (Based on Real Projects) Every CTO evaluating AI investment eventually encounters th…
Content Marketing ROI: Measuring What Matters for SaaS Growth
Most SaaS companies cannot answer the question: "Is our content marketing working?" They track vanity metrics (traffic, social shares) instead of reve…
I shipped a support desk by deleting a dependency
I added a support desk to LaraFoundry this week. The first commit in the slice removed a package instead of adding one. LaraFoundry is a reusable SaaS…
How I Built a Free SEO Audit Tool with Next.js, Supabase, and Stripe in 1 Week
Last weekend I started building SiteGrade — a free instant SEO audit tool that gives any website an A–F letter grade and the top fixes ranked by impac…
When AI Hosts Hallucinate: Failure Modes and How Three-Tier Review Catches Them
When AI Hosts Hallucinate: Failure Modes We've Seen and How Three-Tier Review Catches Them By the KAVANA engineering team — June 2026 The word halluci…
Treating broadcast traffic and weather updates as software engineering problems
Treating broadcast traffic and weather updates as software engineering problems By the KAVANA engineering team — June 2026 The public conversation abo…
The Actual Cost of Dead Air: What 20 Years of Station Outages Taught Us About Broadcast Economics
The Actual Cost of Dead Air: What 20 Years of Station Outages Taught Us About Broadcast Economics By the KAVANA engineering team — June 2026 When broa…
We built a GitHub-style social layer inside our cloud IDE — here's why
Most IDEs are isolated by design. Your code lives in a workspace. Collaboration happens somewhere else. Discovery happens somewhere else. Building in …