I Built 34 Developer Tools That Run Entirely in Your Browser — Including PDF & Image Processing

Source: Dev.to

INTRO

As developers, we paste sensitive data into random online tools and upload confidential files to unknown servers every day without thinking about where they end up. I built something to fix that.

THE PROBLEM

We constantly use PDF mergers, image compressors, Base64 encoders, JSON formatters, and regex testers. Most online versions are ad‑heavy, slow, nag about file sizes, or send your data to their servers.

THE SOLUTION

TextTools Pro runs entirely client‑side—no data ever leaves the browser. Even PDF merging and image compression happen completely in JavaScript.

LIST OF 34 TOOLS

Text Tools (6 free)

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Encoding Tools (3 free)

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Generator Tools (4 free)

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PDF Tools (3 free) — traffic magnets

• (list of tools not provided)

Image Tools (3 free) — traffic magnets

• (list of tools not provided)

Developer Tools (15 premium)

• (list of tools not provided)

PRICING STRATEGY

PDF and image tools are offered for free because they drive the most search traffic. The developer‑focused tools are premium, as developers are willing to pay for daily‑use utilities. Pricing options:

• $29 lifetime deal
• $4.99/month subscription

TECHNICAL DETAILS

• PDF processing: pdf-lib library runs entirely in the browser.
• Image manipulation: Canvas API is used for compression, resizing, and other operations.
• Architecture: All functionality is implemented with client‑side JavaScript; no server‑side processing occurs.

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Try it out at https://texttools-pro.vercel.app