Multichain Web3 OS for trading, bridging, NFTs & mining
A Web3 operating system that rolls token swapping, cross-chain bridging, NFTs and mining into one interface, spanning Ethereum, Base, Solana, Bitcoin, Arbitrum, Polygon, Fantom and dozens of further networks.
- Swap ETH, BTC, SOL, USDT and top tokens across 44+ networks
- Bridge between chains and trade in one interface
- NFTs and mining built into the same universe
Best for: Crypto users who want trading, bridging and NFTs under one roof.
Visit THE ROYAL UNIVERSE →
Snag any YouTube video. Saved in seconds.
The converter fleet’s flagship. Paste a YouTube link to save MP4 or MP3, then keep going through a full studio toolbox for trimming, converting and repairing video, audio, images and PDFs.
- MP4 and MP3 downloads in up to 4K where the source serves it — no watermark, no sign-up
- 424 converter and file tools across dedicated studios (video, audio, image, PDF and more)
- Files are processed on the fly and deleted immediately — never stored
Best for: Anyone saving videos or converting files without installing software.
Visit SnagYouTube →
Free AI resume builder — AI writing help + ATS check
An AI resume builder built to pass applicant-tracking screening: it polishes your bullets and summary and tailors them to a job posting, working only with the experience you actually have.
- AI bullet and summary writing that only sharpens your own real experience — it never invents any
- 120 templates designed for ATS parsing, with a live checker that shows what a parser reads
- PDF and DOCX downloads free — no paywall, no trial, no account required
Best for: Job seekers who want a polished, parser-safe resume, free.
Visit AIResumes →
Describe it. We’ll find it.
Search by description, not keywords. Describe the movie moment, viral clip or meme stuck in your head and AiSearcher sweeps the web and public archives to find the real image or video.
- Describe a scene in plain words — no title, link or filename needed
- Searches the whole internet and public archives for the match
- Safe search keeps results family-friendly, and no account is needed
Best for: Anyone hunting an image or clip they can describe but can’t name.
Visit AiSearcher →
Pick a template. Send a pro invoice.
The network’s invoice maker: pick a template, fill in your details and the job, and download a clean PDF invoice — built for off-platform billing, deposits and wholesale orders.
- Professional templates ready to fill in — totals calculate as you type, PDF in one click
- Free means free: $0, no accounts, no paid plans, no watermark on your PDF
- Your shop’s details are remembered in your browser, so repeat orders take seconds
Best for: Sellers and micro-businesses that need a proper invoice fast.
Visit FreeInvoice →
You’re here
The mega-library of free calculators
You are standing in it: the network’s calculator seat. All 154 tools — money, mortgages, home projects, health, school and everyday math — each with its formula and a worked example, all free.
- All 154 network calculators in one library — money, home, health, school and everyday math
- Every tool shows its formula and a worked example, so you can check the math yourself
- Free embeds for every calculator — put any tool on your own site, no attribution required
Best for: Everyone — this is the whole shelf. If you are here, you are home.
Visit Monster Calculator →
Math, explained clearly
The network’s plain-language math seat: everyday calculators whose pages explain the working in clear steps, so the answer teaches you something on the way.
- Everyday calculators with the working shown in plain language, step by step
- Fractions, percentages, ratios and unit conversions without the jargon
- Free, no sign-up — the answer and the explanation on the same page
Best for: Students, parents and anyone who wants the why with the answer.
Visit Clear Math →
Done-for-you posting for X, from the OttoSocial network
An AI social media manager that learns your voice from a few answers, then writes and publishes your X posts daily, keeping everything in an editable queue you can check.
- Posts written in your voice and published for you every day
- Every post stays in an editable queue until the moment it goes out
- Connects through X’s own sign-in — it never sees your password
Best for: Busy owners who should post daily but never find the time.
Visit AiSocialMedia →
Social media growth services, ordered in minutes
The network’s growth panel: order followers, likes and views, or switch on AutoBoost and let growth arrive steadily, with every order tracked from one wallet and dashboard.
- Order followers, likes and views for the major social platforms
- AutoBoost campaigns drip steady growth instead of one spike
- Top up a token wallet once and track every order from your dashboard
Best for: Creators and businesses building social proof and steady growth.
Visit FollowerFuel →
Partner with us
We partner with people and businesses whose audiences overlap with ours — which, for a mega-library, is almost everyone with a practical problem to solve:
- Tool and utility websites — run a free online tool our users would genuinely find useful? We are interested in listing each other and cross-promoting where it honestly helps both audiences.
- Creators — bloggers, newsletter writers and video creators in money, home, health, school or small business: our calculators are free to link to and free to embed on your own pages.
- Businesses — if your customers calculate anything — prices, payments, quantities, deadlines — we are open to integrations and joint efforts that genuinely help them.
What we offer
- Listings — a place in our network and resource pages where there is a real fit for our users.
- Cross-promotion — featuring each other’s tools and content where our audiences overlap.
- Integrations — every calculator on this site can be embedded on your website free, with no attribution required, and we are open to deeper integrations.
We keep partnerships simple and honest: no paid placements dressed up as recommendations, and we only list things we believe are genuinely useful to our users. If that sounds like a fit, email us:
Email autoboostteam@gmail.com
Tell us what your site or business is, who it is for, and what you have in mind.
Monster 
