
Omni Calculator
Calc iOS App
Calculoteca
calculator.net
CALCULATOR.IO
Trip Tellers
Numi App
354 free calculators for math, finance, health, geometry, dates, units, taxes, construction, travel, and developers. Browser-side tools with no signup.

Agentmemory
Mem0
Stop re-explaining your project to Claude every session. ContextForge adds persistent memory to Claude Code, Cursor, and Copilot via MCP. Free tier, 3-minute setup.
Which is more popular?
Based on our record, ContextForge.dev seems to be more popular. It has been mentioned 2 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | calctoolsbase.com | contextforge.dev |
| Pricing | ||
| Platforms | — | |
| Company | — | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


CalcToolsBase: Free Calculators for Everyday Questions CalcToolsBase is a collection of browser-based calculators from Takenick Innovation. It brings together math, finance, units, dates, geometry, construction, education, and other calculation tools in one searchable website. What you can do...
ContextForge is persistent, searchable memory for AI coding agents — built on the Model Context Protocol (MCP). Your AI assistant forgets everything when the session ends. ContextForge fixes that: save architectural decisions, naming conventions, and debugging context once, and any MCP client...
What each product offers, as listed by its team.


An editorial look at what each product does well and who it suits.


No analysis of Calc Tools Base yet.
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Why this product is good
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How to Make Claude Run Automated Workflows (ContextForge Skills Tutorial)
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Calc Tools Base and ContextForge.dev.
Calc Tools Base's answer
CalcToolsBase combines a broad calculator library with focused pages for individual questions. Its range includes everyday arithmetic, financial scenarios, dates, construction estimates, and India-focused calculations. Calculator inputs stay in the browser, and tool pages include explanations and limitations to help users interpret results.
ContextForge.dev's answer:
ContextForge is memory that lives at the MCP layer, so it works across every AI coding agent at once — Claude Code, Cursor, GitHub Copilot, ChatGPT, and Windsurf — not just one. Save a decision once and any client recalls it later with semantic search. It goes beyond a note store: automatic git sync turns your commits and PRs into searchable knowledge, plus task tracking, snapshots, and team sharing — all through a single MCP server you add with one command.
Calc Tools Base's answer
CalcToolsBase is a practical choice for people who want free, occasional calculations without creating an account or installing software. Searchable categories help users find a relevant tool, while worked examples and formula notes make it easier to understand the calculation and its assumptions.
ContextForge.dev's answer:
Most memory tools are tied to a single agent or are just a key-value store. ContextForge is MCP-native, so it's portable across all your AI tools; it adds git sync so your codebase history becomes searchable context automatically; and it includes team features (shared spaces, collaborators) that solo-memory tools lack. Setup is one command, there's a genuine free-forever tier with no credit card, and paid plans start at just $9/month.
Calc Tools Base's answer
CalcToolsBase serves students, teachers, freelancers, small-business owners, developers, and people planning everyday tasks. Typical uses include checking percentages, converting measurements, comparing repayment scenarios, calculating dates, and estimating materials. Specialist calculators provide reference estimates rather than professional advice.
ContextForge.dev's answer:
Software developers and engineering teams who use AI coding assistants — Claude Code, Cursor, GitHub Copilot, ChatGPT, Windsurf — and are tired of re-explaining their project, architecture, and conventions every session. It fits solo developers working across multiple projects as well as small teams that need shared, persistent context.
Calc Tools Base's answer
CalcToolsBase is part of Takenick Innovation's collection of online utilities. Its focus is making everyday calculations accessible through dedicated browser pages, bringing different calculation needs together while keeping the workflow simple: choose a tool, enter values, and review the result.
ContextForge.dev's answer:
ContextForge was born from a simple frustration: AI coding agents forget everything the moment a session ends. Every new conversation meant re-explaining the same architecture, naming conventions, and past decisions. ContextForge was built to give AI agents a permanent, searchable memory through the Model Context Protocol — so knowledge is captured once and reused forever, across sessions and projects. It even dogfoods its own memory to help build itself.
Calc Tools Base's answer
CalcToolsBase uses HTML, CSS, and client-side JavaScript. Static pages provide the interface, and JavaScript performs calculations within the user's browser. Calculator form values are not submitted to a calculation backend. Hosting, analytics, and advertising operate separately from the calculation logic.
ContextForge.dev's answer:
Next.js 16 (App Router), React and Tailwind CSS for the dashboard, hosted on Vercel. Supabase (PostgreSQL) with pgvector powers the semantic vector search, and Deno edge functions serve the API. Embeddings use OpenAI text-embedding-3-small. The MCP client is a Node.js package (contextforge-mcp) on npm, implementing the Model Context Protocol.
Share your experience with using Calc Tools Base and ContextForge.dev. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking Calc Tools Base since Sep 2026.
Init links the folder to a project, so every agent working in that repo reads and writes the same memory, and it adds the rules that make sessions check who else is live before big changes. For Cursor, Copilot, Claude Desktop and... - Source: dev.to / 16 days ago
I built ContextForge because I was losing this argument with my own agents several times a week. The idea is small: when we decide something, the agent saves the decision with the reason, in the project's memory. The next session, in... - Source: dev.to / about 1 month ago
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