All data stays on your device. No cloud, no tracking.
No network requests. Everything runs locally.
No internet needed. Use these tools anywhere, anytime.
Browse everything in one place.
Test APIs with a Postman-like interface.
Kanban-style task management with dynamic statuses.
Chat with Chrome's built-in Gemini Nano AI locally.
Save and organize your favorite links locally.
Track time with laps and precise milliseconds.
Stay focused with the Pomodoro technique.
Convert times across different timezones easily.
Quick notes with colors and pinning.
Edit CSV files with a spreadsheet-like interface.
View, edit and format JSON with validation.
Minify JSON by removing spaces and formatting to reduce prompt token usage.
Estimate LLM tokens and approximate prompt cost from text.
Check BIN/IIN prefixes to detect likely card network and BIN traits.
Test regex against sample text with explainers.
Side-by-side text and code diff checker.
Decode and verify JWT structure offline.
Local prompt templates for AI workflows.
Bulk rename images with custom patterns.
Strip EXIF metadata from images locally.
Random palettes, eyedropper, and image color sampling.
Check IPv4/IPv6 and run a quick speed test.
Create, pin, search, and edit named work sessions.
Set reminders with notifications.
Visual calendar with reminders integration.
Convert image formats locally (JPEG, PNG, WebP, AVIF).
Record audio, trim timeline, export locally.
Trim uploaded video clips and export locally.
Fetch Instagram and TikTok reels, images, and profiles.
Speech-to-text on-device with local transcript export.
Create QR codes for text, phone, email, WhatsApp & links.
Draw or type your signature and download as PNG.
Sign PDF documents with digital signatures.
Merge, split, rotate, reorder, and redact PDFs.
Excalidraw-powered whiteboard for diagrams and sketches.
Block distracting websites to stay productive.
Compress images and files locally.
Crop images with aspect ratio presets. Single or bulk processing.
Resize images with aspect ratio locking. Single or bulk processing.
Combine two images horizontally or vertically with spacing and alignment controls.
Extract text from images entirely on-device.
Create, save, and export professional invoices to PDF/PNG locally.
Generate iOS, Android, and PWA icons with manifest.json from a single image.
Proofread, summarize, and simplify text entirely on-device with local AI.
Remove backgrounds from images locally using professional AI models.
Create strong, secure passwords instantly.
Test your camera, microphone, and speakers.
Deep-dive researcher. Searches web or processes PDFs into a local vector DB to generate 10-page reports.
Chat with CSV, Excel & JSON data. Spree writes & runs code to analyze locally.
Multi-line text utilities: Remove duplicates, sort, randomize, and pick items.
Convert across 25+ categories for daily and engineering units.
Simple, compound, and SIP growth estimates with charts.
Loan EMI, total payable, and amortization schedule.
Estimate taxes for India, US, and UK with slab breakdown.
Country-aware gross to net salary estimates.
Track income/expenses with charts, filters, and CSV import/export.
Generate editable WhatsApp chat mock screenshots.
Create Instagram post and profile screenshot mocks.
Build editable Google-style search result screenshots.
Create ChatGPT-style home and chat screen screenshots.
Build memes from templates or uploads with draggable text.
Generate bulk mock data (JSON/CSV) based on your custom schema locally.
Index and search text by meaning (vectors) locally using transformers.js.
Automatically mask sensitive PII (Names, Emails, SSNs) using local AI.
Build consistency with local habit tracking and streaks.
Analyze legal documents for red flags, hidden fees, and key clauses using local AI.
Focused toolsets for specific needs.
In a world of data breaches and cloud subscriptions, OfflineTools brings control back to you.
Every tool on OfflineTools is designed to work without an internet connection. Whether you're on a plane, in a remote area, or just want to save bandwidth, our offline tools are always ready. From PDF manipulation to image compression, everything happens right in your browser.
Most online tools upload your files to a remote server for processing. OfflineTools is different. We use advanced browser technologies like WebAssembly to process your files locally. This means your sensitive documents, photos, and data never leave your device.
By eliminating the need to upload and download files, OfflineTools tools are significantly faster. Large video files or high-resolution images are processed instantly on your hardware, saving you time and frustration.
For developers, security is paramount. Our JWT debuggers, JSON formatters, and API testers ensure that your keys, tokens, and data payloads remain secure on your local machine. No more accidentally pasting secrets into third-party web tools.
Soon you’ll be able to run lightweight local LLM workflows for basic tasks like proofreading, summarization, and chat directly on your machine.