Kolkata Gold Price by ByteShades
Recorded 18K, 22K and 24K gold rates for Kolkata, in English and Bengali.
- Web
software studio · product collective
ByteShades is an independent software studio. We build browser extensions, Mac apps, developer tools and everyday utilities. Some are open source, some you pay for once, all of them are meant to be useful.
01products
Every product is built and maintained by the same two people.
2 products
Recorded 18K, 22K and 24K gold rates for Kolkata, in English and Bengali.
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02the mark
The logo is a small diagram of how ByteShades works.
01 · The byte
Same indigo, same shape, on every product we ship. In ASCII, B is 0x42: one byte, 0100 0010.
0100 0010 · 0x42 · B02 · The shade
Its sweeping curves form the S beside the B. It is the part that changes from product to product.
B + shade03 · Many shades
Kolkata Gold Price is gold and FeedKeeper is red. Each one is a different shade of the same studio.
one byte, many shades03pricing
Each product states its model up front, on its card and its page.
04changelog
Real versions, real dates, straight from each product's release history.
~/byteshades $ byteshades changelog --limit 5
~/byteshades $
05blog
AI news worth reading, tools we like, and how our products work under the hood.

GPT-6 Astra helped decode an 1809 cipher letter to General Marmont and find counterexamples to Grad's 1967 plasma conjecture. What happened, and what it means.

Why sites built by AI coding agents look alike, and the tools that help: Hallmark, Impeccable, the 21st.dev MCP, Archify for diagrams, and asking for variants.

Why we built FeedKeeper, a Chrome extension that hides the kinds of YouTube videos you choose from your home feed and Up next, and how its three modes work.
06studio
ByteShades makes small tools and keeps them working. Each one does a single job, states its price before you install it, and is maintained by the two people who built it. We would rather look after a few tools for years than launch many and leave them.

Co-Founder & CEO
Full-stack developer who builds web apps and APIs with React, Next.js, Node.js, PostgreSQL and AWS.
Soumen on LinkedIn
Co-Founder & CTO
Software developer who builds LLM-powered web, Android and backend apps, with a background in NLP.
Souvik on LinkedIn07faq
ByteShades is an independent software studio that builds and maintains small tools: browser extensions, Mac apps, developer tools and everyday utilities. It is based in Kolkata, India, and every product carries the studio's name, as in "FeedKeeper by ByteShades".
ByteShades products are built and maintained by its two co-founders: Soumen Samanta (CEO) and Souvik Samanta (CTO).
Some are, and each product page states its price model. Kolkata Gold Price is free to use. FeedKeeper is freemium: free to use, with an optional paid tier. There are no surprise subscriptions: anything paid says so before you install it.
None of the published products are open source at the moment. When one is, it will be listed on this page with its repository, and the studio's public code lives at https://github.com/Byteshades.
byteshades.com sets no cookies and runs no analytics. For the products: Kolkata Gold Price needs no account or personal details. Its privacy policy says Google Analytics and Google AdSense are planned, and that they may use cookies once enabled. FeedKeeper has no server and no analytics. Video titles, channel names and, unless you turn it off, descriptions and tags go to OpenRouter with your own API key; nothing about you, such as watch history or cookies, is sent.
Email contact@byteshades.com with the product name, what you expected and what happened.
08contact
Bug reports, feature requests or a tool you wish existed: write to us at contact@byteshades.com.