AI & ML Tools
Free AI and machine-learning tools that run in your browser: build and improve prompts, count tokens, estimate LLM API costs and GPU VRAM, prepare JSONL fine-tuning datasets, chunk text for RAG, and calculate training steps, learning-rate schedules and model metrics. No API key, no signup.
AI & ML Tools
18 tools in this category
Prompt Generator
Build clear, structured prompts for ChatGPT, Claude, Gemini and other LLMs by filling in …
Prompt Improver
Score any AI prompt against a prompt-engineering checklist (role, context, format, exampl…
System Prompt Builder
Create a reusable system prompt for a custom GPT, Claude project, chatbot or AI agent: pe…
Few-Shot Builder
Turn example input/output pairs into a clean few-shot prompt for classification, extracti…
Token Counter
Estimate how many tokens your text uses in GPT, Claude, Gemini or Llama models, plus word…
LLM Cost Calculator
Estimate monthly AI API costs from input/output tokens, requests per day and price per mi…
Context Window
Check whether a prompt or document fits a model’s context window, how much room is left f…
Text Chunker
Split long text into chunks by characters, words or estimated tokens with overlap, ready …
JSONL Dataset Builder
Convert CSV or prompt/response pairs into chat-format JSONL for fine-tuning OpenAI, Mistr…
JSONL Validator
Validate JSONL files line by line: find JSON syntax errors, missing messages/roles, empty…
Dataset Splitter
Shuffle lines of CSV or JSONL data with a fixed seed and split them into train, validatio…
Training Steps
Calculate steps per epoch, total training steps, warmup steps and effective batch size fr…
LR Scheduler
Plot learning rate schedules (constant, linear decay, cosine, cosine with restarts, step)…
GPU VRAM Calculator
Estimate GPU memory needed to run or fine-tune an LLM by parameter count, precision (FP16…
Confusion Matrix
Enter true/false positives and negatives to compute accuracy, precision, recall, specific…
Cosine Similarity
Compute cosine similarity, dot product and Euclidean distance between two vectors or embe…
Image Prompt Builder
Build detailed image prompts by picking subject, style, lighting, camera, composition, mo…
AI Cliché Finder
Highlight overused AI-sounding words and phrases (delve, tapestry, in today’s fast-paced …