TTheBrainCord Tools100% Client-Side & Private

Free Browser-Based Utilities

Zero server uploads, powered locally.

Every tool below scales, strips, calculates, or reasons entirely inside your browser. Nothing you open here is ever uploaded to a server.

⌘K
BYO NVIDIA Key

NVIDIA AI Agent

A ReAct agent on NVIDIA NIM models — bring your own key

Runs a Thought/Action/Observation reasoning loop against build.nvidia.com NIM models. Paste your own NVIDIA API key (used only to power this agent, never stored server-side) and watch it search, calculate, and answer step by step.

Runs fully localOpen tool

Invoice Generator

Offline invoices with a one-tap WhatsApp send

Create localized, professional invoices and share them straight to a client's WhatsApp — no account, no server, works offline after first load.

WhatsApp Ready
Local Storage

Accounting Dashboard

Targets vs. progress, tracked locally

A lightweight financial tracker that compares targets against actuals with simple charts — all data stays in your browser's local storage.

Runs fully localOpen tool
LLM Token Saver

File Converter

PDF / CSV / JSON / TXT / MD → clean Markdown

Strips formatting noise and converts files to clean Markdown entirely in your browser — built to cut LLM token usage when pasting documents into a prompt.

Runs fully localOpen tool
Free APIs

Open-Source Aggregator

One search bar across the best free APIs

Aggregates high-utility free and open-source APIs behind a single interface — a discovery funnel into TheBrainCord's wider tool ecosystem.

Runs fully localOpen tool
BYO Gemini Key

SEO & Content Auditor

Paste a URL, get an actionable SEO to-do list

Scrapes a page and analyzes its text structure, keyword density, and readability with your own Gemini API key — no account, results in seconds.

Runs fully localOpen tool
CoinGecko Feed

Crypto & Fiat Tracker

Net worth across wallets and banks, in one view

Tracks crypto and fiat holdings side by side, converting everything into your local currency with live CoinGecko and exchange-rate data.

Runs fully localOpen tool
BYO Grok Key

Travel & Itinerary Planner

A weather-aware trip plan you can share in one tap

Builds a day-by-day itinerary matched to the forecast and your interests using OpenWeatherMap and your own xAI Grok API key — shareable straight to WhatsApp.

Runs fully localOpen tool
Instant Calc

Loan / EMI Calculator

EMI, interest, and prepayment at a glance

Compare monthly EMI, total interest, and how extra prepayments shorten your loan — fully in your browser, with a path to Liquifi when you are ready to apply.

Runs fully localOpen tool

More from TheBrainCord

Free tools are just the start — explore our products for travel, finance, editing, and learning.

GoKarnaGo ExploreCoastal tours & bookingsPickMyFlightsCall-to-book flight searchEditheraphyProfessional photo editingTBC AcademyCourses & learningLiquifiLoans & financeTheBrainCordAgency & partnerships