Convert PDF to images or images to PDF without uploading files. Extract text from images with OCR. Compress images, remove EXIF metadata, generate QR codes, and create favicons - all processed locally in your browser.
Count words, characters, and estimate reading time with our word counter. Generate Lorem Ipsum placeholder text. Clean and format text, compare documents with text diff, and make your writing more professional.
Calculate loan EMI for home, auto, student, and personal loans with amortization schedules. Convert VCF contacts to Excel. Track meeting costs, manage subscriptions, and estimate task durations for better productivity.
Unlike other online tools, SimpleTaskTools processes everything locally in your browser. Your files, text, and data never leave your device. No accounts, no tracking, no data collection. Works offline as a Progressive Web App (PWA).
Everything you wanted to know about SimpleTaskTools.
Are these tools really free to use?
Yes. Every tool on SimpleTaskTools is 100% free, with no sign-up, no email required, no "freemium" lock-out. We sustain the project through tasteful display advertising on a few high-traffic pages, an optional public REST API for developers, and voluntary donations. No payment is required to use any tool.
Do my files get uploaded to your servers?
For 95% of our tools, no. Tools like JSON Formatter, PDF to Image, Image Compressor, EXIF Stripper, Hash Generator, QR Code Generator, and the Secure Key Generator run entirely in your browser using JavaScript and the Web Crypto / WebAssembly APIs. You can verify this by opening browser DevTools → Network tab and watching that no files are uploaded. The few exceptions (Tone Formalizer and Brand Context AI generation) are clearly labeled and only forward the text you explicitly submit.
How does the Secure Key Generator compare to randomkeygen.com?
Our Secure Key Generator offers 12 key types — Memorable Passwords, Strong Passwords (16 and 32 char), Alphanumeric Keys, UUID v4, Stripe-style API Keys, 128-bit and 256-bit Hex Keys, JWT Secrets in Base64, Django SECRET_KEY format, MongoDB ObjectIds, and WiFi/WPA keys. All values come from crypto.getRandomValues() (the same CSPRNG that Node.js, Chrome, and OpenSSL use) and are generated entirely client-side. Nothing transits the network.
What is the Webhook Test Simulator and how does it work?
It generates a unique URL like simpletasktools.com/api/webhook/abc123. You point any webhook source (Stripe, GitHub, Slack, Zapier, your own app) at that URL, and we capture every incoming request — method, headers, query string, body, IP, and timestamp — and display them in real-time. Stored requests auto-expire after 24 hours. Perfect for debugging integrations without spinning up a public server. Note: do not send sensitive production data, the URL is public.
How does the Brand Context Generator help with AI tools?
Tools like ChatGPT, Claude, and Gemini produce inconsistent output across different chats because they have no memory of your brand voice. The Brand Context Generator builds a single Markdown document covering your mission, target audience, tone, do/don't words, visual identity, and unique value proposition. You paste this document at the start of any AI chat, and the AI now writes consistently in your brand voice. You can build it manually with the wizard or paste a URL/description and let our AI auto-fill every field in 15 seconds.
Do you offer an API for developers?
Yes. We expose 18 endpoints under /api/v1/ covering JSON validation, hash generation (MD5/SHA-1/SHA-256/SHA-512), QR code rendering, Base64 encoding, UUID generation, password strength scoring, regex testing, and more. The free tier allows 100 requests/day per IP without an API key, or 1,000/day with a free key. See /api-docs for full reference, request/response shapes, and example curl commands.
Can I use these tools offline?
Yes. SimpleTaskTools is a Progressive Web App (PWA). Once a tool page has loaded once in your browser, it works offline — useful on flights, in metros, or in regions with spotty connectivity. The exceptions are AI tools (Tone Formalizer, Brand Context auto-fill) which require a network connection to call the LLM proxy.
Why should I trust your tools with sensitive data?
Two reasons. First, the privacy log at the bottom-left of every page shows exactly what storage and network calls each tool makes. Second, you can audit it yourself: open DevTools, watch the Network tab, and confirm no files or text are uploaded for client-side tools. We also publish our content security policy in the page source. Still cautious? Disable your network connection (airplane mode) and use any tool — they keep working because all processing is local.
How do I request a tool that doesn't exist yet?
Click "Request a Tool" in the navigation or visit any page and use the request form. Submissions are reviewed weekly. We've built dozens of tools based on user requests — recent additions include the Brand Context Generator, Webhook Tester, and JSON to YAML converter. If a tool is genuinely useful and feasible to run client-side, there's a good chance we'll build it.
Is the source code open?
Selected components and tool implementations are available on GitHub for educational and non-commercial use. The full proprietary stack (admin dashboard, API rate-limiting, AI proxy) is closed source. We may open-source more parts of the platform over time.