SEO Checker, CSV Converter, Ads Audit Tool, Image Converter, Video Splitter,
each tool, a world unto itself.
Powered by AI to Deliver Deep, Actionable Website Insights
Run a complete, free website audit in seconds — powered by advanced AI analysis that goes far beyond surface-level checks. Whether you're a business owner, digital marketer, or web developer, our free AI Website Audit Tool gives you an instant, in-depth look at everything that affects your site's performance in search engines and beyond.Our AI-powered scanner evaluates your website across all the key pillars that matter most: on-page SEO health, page load speed, Core Web Vitals, mobile responsiveness, meta tag optimization, broken links, image alt text, structured data, and accessibility compliance — all in one comprehensive report
Instantly Detect AI-Generated Text with Precision & Confidence
Wondering if a piece of content was written by a human or generated by an AI tool like ChatGPT, Claude, or Gemini? Our Free AI Checker Tool gives you instant, accurate detection — no guesswork, no fluff, just clear results you can trust. Powered by advanced natural language processing and machine learning models, our AI content detector analyzes deep text patterns, sentence structure, linguistic rhythm, and writing consistency to determine whether content is human-written or AI-generated. It goes beyond simple keyword scanning — it thinks the way a trained editor would, catching the subtle tells that give AI writing away. This tool is built for everyone who works with content: teachers checking student submissions for AI use, editors verifying authenticity, SEO professionals ensuring their content won't be penalized, hiring managers reviewing AI-assisted applications, and publishers maintaining editorial integrity. If content quality and authenticity matter to you, this tool belongs in your workflow.
PNG, JPG, WEBP, AVIF, GIF, FAVICON & More — All in One Tool
Convert any image to any format — instantly, freely, and without installing a single thing. Whether you need to convert PNG to WEBP for faster web performance, turn a JPG into a crisp ICO favicon for your browser tab, transform a static image into an animated GIF, or extract a still frame from a GIF into PNG, JPG, or AVIF — our free online image converter handles it all in one place. Upload your image and choose from the widest format support available: PNG, JPG, JPEG, WEBP, AVIF, GIF, ICO, BMP, TIFF, and SVG. No account required. No watermarks. No file hidden behind a paywall. Just a clean, fast conversion you can download immediately. Designed for web developers optimizing assets, designers preparing files for different platforms, marketers resizing and reformatting visuals for social media, and everyday users who just need a quick format change without the frustration of bloated desktop software. Our converter preserves image quality throughout the process — you control the output format, and we handle the rest. Need a favicon from your logo? Done in seconds. Need to batch-prepare images in AVIF for a performance-focused website? No problem. Need to pull a still from a GIF for a thumbnail? Easy. This is the only image format converter you'll ever need — and it's completely free.
Transform Your Data Without Limits
Take full control of your data with a powerful and flexible CSV Converter designed to simplify complex transformations. Whether you need to convert CSV files into PDF, TXT, HTML, DOC, or other popular formats, this tool ensures a smooth and accurate process every time. It allows you to seamlessly restructure, organize, and present your data in the format that best fits your needs—whether for reporting, sharing, or analysis. Built for efficiency and ease of use, the converter handles both small and large datasets while preserving data integrity and formatting. From developers and analysts to students and business professionals, anyone can quickly convert raw CSV data into clean, readable, and professional documents. Eliminate manual work and streamline your workflow with a tool that adapts to your data, not the other way around.
Precision Tools for SEO Specialists
Optimize every aspect of your website with a powerful SEO Checker built specifically for SEO specialists, marketers, and digital professionals. This tool provides deep insights into your website’s performance, helping you analyze critical factors such as on-page SEO, keyword usage, meta tags, page speed, mobile responsiveness, and overall search engine visibility. Designed to simplify complex SEO audits, it quickly identifies issues that may be affecting your rankings and offers clear, actionable recommendations to improve performance. Whether you are managing a single website or multiple client projects, this tool streamlines your workflow by delivering accurate data and structured reports in seconds. Stay ahead of search engine algorithms and make data-driven decisions with confidence. From technical audits to content optimization, the SEO Checker empowers you to enhance rankings, increase organic traffic, and maintain a strong online presence in an increasingly competitive digital landscape.
Cut, Shape, and Perfect Every Frame
Transform raw footage into polished, engaging content with Video Splice—a fast and intuitive tool designed for precise video editing. Whether you're creating short-form clips for social media or refining longer videos, this tool gives you full control to trim, cut, merge, and restructure your content effortlessly. Built for creators, marketers, and editors, Video Splice simplifies the editing process while maintaining high-quality output. You can quickly isolate key moments, remove unnecessary sections, and combine clips to craft a smooth, compelling narrative. Its streamlined workflow ensures you spend less time editing and more time creating impactful visuals. Perfect for turning long videos into attention-grabbing highlights, reels, or promotional content, this tool helps you adapt your content for modern platforms where timing and precision matter most. Create professional-grade videos with ease and bring your ideas to life—frame by frame.
Authentication required
Algorithmic Intelligence
Unlock the true potential of your advertising campaigns with Ad Evaluation—an advanced, algorithm-powered tool designed to audit and analyze ad performance with precision. Built for marketers, advertisers, and performance specialists, this system uses intelligent models to evaluate your ads across multiple platforms, identifying strengths, weaknesses, and opportunities for optimization. Through a structured multi-phase analysis process, the tool examines key performance indicators such as engagement, conversion potential, audience targeting, creative effectiveness, and messaging clarity. Its self-learning capabilities ensure that insights become more refined over time, adapting to trends and platform-specific behaviors. Whether you are running social media ads, search campaigns, or display promotions, Ad Evaluation provides clear, data-driven recommendations to enhance ROI and campaign efficiency. Replace guesswork with algorithmic intelligence and make informed decisions that drive measurable results across your entire advertising strategy.
Most platforms rent their intelligence from APIs they don't own, wrapped in pricing tiers designed to nudge you toward a subscription. We built everything ourselves — every tool is a hand-written algorithm, deterministic and auditable. AI only enters at the final step, to sharpen the language of reports. Free to use. Free to contribute. No surprises, no paywalls, no expiry dates.
Our Manifesto
Every tool here was designed with intention. We think about edge cases, failure modes, and what happens when your input is malformed. We don't ship when it looks right — we ship when it is right.
The most honest software on the internet was written by someone at 11pm who just wanted to solve their own problem. DevToolsHub was born exactly like that — and we think that origin is something to be proud of, not apologise for.
We don't hide core features behind a subscription. We don't throttle free users. We don't collect your data to sell it. Free is not a strategy here — it's the whole point. Open source tools belong to the people who use them.
If you ship a tool here, your name is on it. Permanently. In the tool header, in the docs, and in the acknowledgements page. We believe the internet has too many uncredited builders and we refuse to be another platform that strips attribution.
We are not a wrapper. We are not a prompt engineer's playground. Every tool does real computation that you can trace, verify, and understand. When something is wrong, you can find out why — because the logic is yours to read.
Core principles
Every tool runs on algorithms we wrote from scratch. No third-party calls, no vendor lock-in, no silent breaking changes. What goes in is exactly what gets computed — nothing hidden, nothing outsourced.
Every line of tool logic is public, readable, and forkable. We believe transparency is a feature, not a liability. If you find a bug, a PR is always more valuable than a complaint.
Algorithms handle all computation. AI only enters as a final layer — to sharpen the language of reports and surface suggestions. The logic stays deterministic, auditable, and predictable.
Any developer anywhere can ship a tool here. Your name goes on it permanently — on the tool page and in the acknowledgements. Hobby coders, students, and veterans are equally welcome.
DevToolsHub started as a single afternoon project — a JSON formatter that didn't phone home, didn't require a login, and didn't open a chat widget asking if you needed help. It was boring in the best possible way. It just worked.
That experience became a philosophy. We noticed that almost every developer tool on the internet had quietly moved to a model where the free tier was a demo and the real product was a subscription. Meanwhile, the actual algorithms — the code that does the work — were rarely more than a few hundred lines. The scarcity was manufactured.
So we started building tools the old way. Write the algorithm. Ship the tool. Let anyone use it. Repeat. No VC funding, no growth team, no conversion funnel. Just code that solves real problems for real developers who are trying to build things.
We are particularly interested in the kind of developer who builds things for the love of building — hobby coders who write parsers on weekends, students who are still learning what a hash map is, engineers who maintain decade-old internal tools that nobody else wants to touch. These people deserve the same quality tooling as funded startups with unlimited AWS credits.
Every tool on this platform is credited to the person who built it. That is not a courtesy — it is a principle. The internet has too many uncredited builders. Code that was written by a person at 2am, solving a problem they actually had, has a distinct character that polished corporate software rarely achieves. We want to preserve that character and give it a name.
Contributing a tool here does not require a team or a roadmap. It requires an idea and the willingness to write the algorithm correctly. We will handle the rest — the hosting, the design system, the routing, the analytics. You bring the logic; we give it a home.
Once your tool is live, your name is attached to it permanently. In the tool header, in the documentation, and in the acknowledgements page that we maintain as a public record of every person who has contributed. We call this the acknowledgement list, and we write it in gold because we mean it literally — the people on that list are the reason this platform exists.
We do not accept tools that are wrappers around paid APIs, tools that collect user data without disclosure, or tools that are designed to funnel users toward a commercial product. Everything here must be genuinely free and genuinely useful. Those are the only two requirements.
Want to ship a tool? Tell us what you'd like to build. Once deployed, your name is credited permanently.