Developer ToolsetAI & Machine Learning
AI calculators, LLM tools, and machine learning utilities
AI Background Remover
Remove image backgrounds instantly in your browser — no upload, no signup, no watermark. Get a transparent PNG, solid-color, or blurred background, with the AI model running entirely on your device so your photos never leave it.
AI Embedding Cost Calculator
Estimate the total token count and API cost to embed a document corpus using OpenAI, Cohere, or Voyage embedding models.
AI GPU Buying Guide: Best GPU for Running Local LLMs
Pick the right GPU for running local LLMs. Choose your target models, quantization, and minimum speed, and get a ranked GPU table with VRAM fit, estimated tokens/sec, and real community benchmark data — all computed in your browser.
Batch AI Processor — Run a Prompt Over Every CSV Row Locally
Run one AI prompt across every row of a CSV or spreadsheet entirely in your browser with a local LLM. Classify, extract, summarize, or reformat thousands of rows with zero API costs and zero data sharing.
Can I Run AI Locally? Hardware Checker
Find out in 10 seconds whether your computer can run local AI models. One click detects your GPU in the browser and shows which open LLMs you can run, expected speeds, and the cheapest upgrade for models just out of reach. 100% private — nothing is uploaded.
Deep Learning Visualizer — Watch a Neural Network Train, Live
Watch a real neural network learn, step by animated step: see data flow forward through the layers, watch backpropagation send the error backward, and see every weight adjust itself. Train on XOR, circles, moons, or spiral data with a live decision boundary — in slow motion or fast mode, 100% in your browser.
Embedding Similarity Playground
Type sentences and compute real text embeddings in your browser to see how AI measures meaning. Visualizes cosine similarity as a heatmap, a 2D PCA map, and most/least-similar pairs — fully private, nothing is uploaded.
Fine-Tuning Dataset Builder
Build, validate, and convert LLM fine-tuning datasets entirely in your browser. Add training examples by hand, validate JSONL with line-by-line errors and cost estimates, and convert between OpenAI chat, Alpaca, and ShareGPT formats. Nothing is uploaded — all processing runs locally.
GGUF Model Inspector
Inspect any GGUF model's architecture, quantization, context length and head/layer geometry straight from a HuggingFace link or local file — without downloading the whole multi-gigabyte file. 100% in-browser; nothing is uploaded.
KV Cache & Context Length VRAM Calculator
Calculate how much VRAM an LLM's KV cache consumes at any context length. See the model-weights + KV-cache + overhead breakdown, a total-VRAM-vs-context curve against common GPU capacities, and the max context that fits per GPU. All math runs in your browser — nothing is uploaded.
LLM Quantization Explorer: Compare GGUF Quant Levels
Pick any open-weight LLM and compare every GGUF quantization level (FP16 to Q2_K) side by side: file size, VRAM required to run, quality impact, and which GPUs can run it. Includes a "what should I pick?" helper and an explainer. Runs entirely in your browser.
LLM Sampling Parameters Playground: Temperature, Top-k & Top-p
Interactively see how temperature, top-k, and top-p reshape an LLM's next-token probabilities. A no-download simulator runs the real decoding math on example distributions, and an optional in-browser model inspects a real model's logprobs — 100% private, nothing leaves your browser.
LLM Structured Output Builder
Visually build a JSON Schema and instantly generate OpenAI structured outputs, OpenAI/Anthropic tool definitions, Zod, and Pydantic code — plus validate sample responses and import existing schemas. 100% in-browser; nothing you type is uploaded.
Local AI Chat
Chat with an AI model that runs entirely in your browser — free, no signup, no API key. Pick a model like Llama 3.2 or Qwen 2.5, load your own GGUF file, and conversations never leave your device.
Local RAG Playground — Chat With Your Documents In-Browser
A working Retrieval-Augmented Generation pipeline that runs 100% in your browser: add documents, chunk them, embed with all-MiniLM-L6-v2, and ask questions with cosine top-5 retrieval plus an optional in-browser LLM answer. Your documents never leave the browser — nothing is uploaded.
MCP Server Config Builder
Build and validate Model Context Protocol (MCP) server configs for Claude Desktop, Claude Code, Cursor, and VS Code. Pick from 16 popular servers, fill in credentials, and copy valid config JSON plus setup commands. Runs entirely in your browser — tokens never leave your machine.
Private OCR — Image to Text Converter
Extract text from images and screenshots entirely in your browser. Paste a screenshot or drop image files, pick from 11 languages, and get editable text with per-word confidence highlighting — 100% private, nothing is ever uploaded.
Tokenizer Visualizer — See How LLMs Split Text Into Tokens
Paste any text and watch GPT-4 (cl100k_base) or GPT-4o/o1 (o200k_base) split it into colored token chips, with live token/char/word stats, per-model API cost, and a side-by-side tokenizer comparison. Runs entirely in your browser using the real gpt-tokenizer library — nothing is uploaded.