I built 50+ developer tools that run entirely in your browser — here's why privacy matters and how I did it

Every week I open a new browser tab and search for something like "json formatter online" or Shows me three ad banners before I can see the tool Requires me to create an account to "save" my work Is quietly uploading my payload to their server That last one bothers me most. Developers paste real things into these tools — JWT tokens So I built SnapTxt — a collection of 50+ developer utilities that run The toolkit covers the things I reach for most often: Data & text JSON formatter, validator, minifier, diff, tree explorer SQL formatter XML formatter YAML → JSON, CSV → JSON converters Base64 encode/decode, URL encoder, hash generator Auth & security JWT decoder & generator RSA key generator bcrypt generator x.509 certificate decoder Password generator Images Image compressor Image format converter Image to text (OCR via Tesseract.js) SVG to PNG, favicon generator, code-to-image Frontend / CSS Regex tester CSS gradient generator, box shadow generator Color converter Mermaid live editor HTML live editor, HTML to Markdown, HTML to JSX Cron expression builder And more — word counter, text diff, unix timestamp, lorem ipsum, QR code generator, It's a Next.js app deployed as a fully static export to Firebase Hosting. There is no server. CodeMirror 6 for editor-style inputs Tesseract.js for OCR (runs a WASM binary in a web worker) Chrome's built-in Prompt API (Gemini Nano) for the AI explain features in JSON, SQL, and JWT tools — meaning even the AI inference is on-device The static export also means it works offline after the first load. The privacy guarantee isn't a policy — it's an architecture fact. When there's no server, This matters for developers specifically. If you're debugging a production JWT, you probably Which tools are missing that you reach for regularly? Are there tools where the "no server" constraint is actually a limitation? Anything broken or slow on your device/browser? Check it out at snaptxt.app — and if you find it useful, I'd really appreciate a share or a link.

Key Takeaways

•Every week I open a new browser tab and search for something like "json formatter online" or Shows me three ad banners before I can see the tool Requires me to create an account to "save" my work Is quietly uploading my payload to their server That last one bothers me most

•This story was reported by Dev.to, covering developments in the dev space.

•AI advancements continue to reshape industries — read the full article on Dev.to for complete coverage.

I built 50+ developer tools that run entirely in your browser — here's why privacy matters and how I did it

Key Takeaways

Related Articles

Give Your Scheduling Bot Its Own Calendar

Give Your AI Agent Its Own Email Address (Not Access to Yours)

Build Your Own AI Medical Assistant: Automating Health Report Analysis with AutoGPT & OpenAI

Making secret scanning more trustworthy: Reducing false positives at scale

Discussion

I built 50+ developer tools that run entirely in your browser — here's why privacy matters and how I did it

Key Takeaways

Related Articles

Give Your Scheduling Bot Its Own Calendar

Give Your AI Agent Its Own Email Address (Not Access to Yours)

Build Your Own AI Medical Assistant: Automating Health Report Analysis with AutoGPT & OpenAI

Making secret scanning more trustworthy: Reducing false positives at scale

Discussion

Related Articles

Dev.to
Give Your Scheduling Bot Its Own Calendar
A scheduling link makes the human do the work; a scheduling agent with its own calendar does the negotiating. Booking pages outsource the back-and-forth to a UI. The agent model keeps it where it already happens — in email — and answers from a real address with a real calendar behind it. The setup:

Dev.to
Give Your AI Agent Its Own Email Address (Not Access to Yours)
Most "AI agent + email" tutorials start the same way: connect the agent to a human's inbox over OAuth, hope the token doesn't expire mid-run, and pray the agent never replies to the wrong thread on someone's behalf. There's a different model: give the agent its own email address. Nylas recently ship

Dev.to
Build Your Own AI Medical Assistant: Automating Health Report Analysis with AutoGPT & OpenAI
Ever stared at a physical examination report and felt like you were reading ancient hieroglyphics? "Elevated Serum Triglycerides"? "Hypoechoic nodule"? The immediate urge is to Google it, only to be convinced by WebMD that you have three days to live. In the world of AI Agents and Healthcare Automa

GitHub Blog
Making secret scanning more trustworthy: Reducing false positives at scale
Alerts are more trustworthy and actionable when noise is reduced. See how we improved the verification step with context-aware LLM reasoning. The post Making secret scanning more trustworthy: Reducing false positives at scale appeared first on The GitHub Blog.