# ToolHubNest

> Privacy-first online tools for AI, cross-border finance, file processing, and daily tasks. All tools run entirely in the browser — zero file uploads, no server-side processing, no tracking. No sign-up required; works offline after first load.

## About

ToolHubNest is a collection of 26 tools. 16 are local AI tools (on-device inference via WASM), the rest are privacy-first file, finance, and daily utilities. Every tool processes data locally in your browser. AI models are downloaded once from the HuggingFace CDN and cached in IndexedDB.

- Site: https://toolhubnest.com/
- Languages: English (en), Spanish (es), Portuguese-Brazil (pt-br), Indonesian (id)
- Privacy: zero uploads, zero personal data, zero tracking cookies

## AI Tools (on-device, no upload)

- AI Background Removal: https://toolhubnest.com/tools/ai-bg-removal/ — Cut subjects out of photos with clean, hair-level edges. Local image segmentation, PNG with alpha channel, batch processing.
- AI Text Summarizer: https://toolhubnest.com/tools/ai-summarizer/ — Condense articles and long documents into clear, faithful summaries. DistilBART model, INT8 quantized.
- AI Translator: https://toolhubnest.com/tools/ai-translator/ — Translate text between 70+ languages in your browser.
- AI Grammar Checker: https://toolhubnest.com/tools/ai-grammar-checker/ — Rule + AI hybrid grammar checking. Explains why errors occur, not just what's wrong.
- AI Speech to Text: https://toolhubnest.com/tools/ai-speech-to-text/ — Transcribe audio or video to text locally. Whisper model, timestamped segments.
- AI Image Captioner: https://toolhubnest.com/tools/ai-image-captioner/ — Generate text descriptions for images entirely on-device.
- AI Paraphraser: https://toolhubnest.com/tools/ai-paraphraser/ — Rewrite text in different tones and styles locally.
- AI Sentiment & Tone Analyzer: https://toolhubnest.com/tools/ai-sentiment-analyzer/ — Detect sentiment and tone of text with on-device inference.
- AI Object Detector: https://toolhubnest.com/tools/ai-object-detector/ — Detect and label objects in images in the browser.
- AI Content Detector: https://toolhubnest.com/tools/ai-content-detector/ — Classify and moderate image content on-device.
- AI Entity Extractor: https://toolhubnest.com/tools/ai-entity-extractor/ — Extract named entities (people, places, organizations) from text.
- AI Cartoonizer: https://toolhubnest.com/tools/ai-cartoonizer/ — Turn photos into cartoon and anime-style illustrations locally.
- AI Image Upscaler: https://toolhubnest.com/tools/ai-image-upscaler/ — Upscale images 2x/4x with AI super-resolution (Swin2SR). No upload, no API.
- AI Image Classifier: https://toolhubnest.com/tools/ai-image-classifier/ — Identify what is in an image with on-device classification.
- AI Subtitle Generator: https://toolhubnest.com/tools/ai-subtitle-generator/ — Generate SRT/WebVTT/TXT subtitles from audio or video, fully in the browser.
- AI Text to Speech: https://toolhubnest.com/tools/ai-text-to-speech/ — Convert text to natural speech locally with Kokoro TTS.

## File Tools (local processing)

- Image Format Converter: https://toolhubnest.com/tools/image-converter/ — Convert between WebP, PNG, JPG, HEIC. Batch drag & drop, files never uploaded.
- Image Compressor: https://toolhubnest.com/tools/image-compressor/ — Compress images with a quality slider and before/after file size.
- PDF Merge & Split: https://toolhubnest.com/tools/pdf-merge/ — Reorder, merge, and extract PDF pages. All local.

## Finance Tools

- Cross-border Mortgage Calculator: https://toolhubnest.com/tools/mortgage-calculator/ — Mortgages with US APR, EU nominal, and Brazil TAXA rate systems. Full amortization schedule, CSV export.
- Multi-Currency Converter: https://toolhubnest.com/tools/currency-converter/ — Convert 16+ currencies with live rates and offline cache. Fee breakdown.
- Cross-border Tax Estimator: https://toolhubnest.com/tools/cross-border-tax-estimator/ — Estimate US Sales Tax, EU VAT, Brazil ICMS. Adjustable rates, multi-country.

## Daily Tools

- BMI Calculator: https://toolhubnest.com/tools/bmi-calculator/ — WHO vs Asia standard comparison with clear explanations.
- Unit Converter: https://toolhubnest.com/tools/unit-converter/ — Metric, Imperial, and Indonesian local units.
- Word & Character Counter: https://toolhubnest.com/tools/word-counter/ — Accurate CJK character and English word counting with reading time.
- QR Code Generator: https://toolhubnest.com/tools/qr-code-generator/ — Generate QR codes with error-correction and color options, fully local.

## Multilingual URLs (sample)

- Home (EN): https://toolhubnest.com/
- Home (ES): https://toolhubnest.com/es/
- Home (PT-BR): https://toolhubnest.com/pt-br/
- Home (ID): https://toolhubnest.com/id/
- AI Background Removal (ES): https://toolhubnest.com/es/tools/ai-bg-removal/
- AI Background Removal (PT-BR): https://toolhubnest.com/pt-br/tools/ai-bg-removal/
- AI Background Removal (ID): https://toolhubnest.com/id/tools/ai-bg-removal/