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Ömer Agah Ulusoy
Ömer Agah Ulusoy

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7 Free Online Tools Every Developer Should Bookmark in 2026

As developers, we constantly need small utilities — converting files, compressing images, generating QR codes, editing PDFs. Instead of installing desktop apps or trusting random websites, I've been using Tools1984 — a platform with 2300+ free online tools. Here are my top picks:

1. PDF Editor & Merger

Need to merge multiple PDFs before sending documentation? Or split a large PDF into sections? Tools1984's PDF suite handles merging, splitting, compressing, and rearranging pages — all in the browser.

Use case: Combining API docs, contracts, or reports into a single file.

2. Image Compression

Optimizing images for web performance is crucial. The image compressor supports JPG, PNG, WEBP, and GIF formats with adjustable quality settings.

Use case: Compressing screenshots and assets before pushing to your repo or deploying your site.

3. QR Code Generator

Generate QR codes for WiFi networks, URLs, WhatsApp links, VCards, and UTM-tagged campaigns. Useful for both development testing and production.

Use case: Creating WiFi QR codes for your office, or deep link QR codes for mobile app testing.

4. File Converters

With 100+ format conversions available, you can convert between document, image, video, and audio formats without installing ffmpeg or ImageMagick locally.

Use case: Quick format conversions during development without CLI setup.

5. Base64 Encoder/Decoder

Encode and decode Base64 strings instantly. Handy for working with APIs, JWTs, and embedded data.

Use case: Debugging base64-encoded payloads in API responses.

6. JSON Formatter & Validator

Paste messy JSON and get it formatted and validated instantly. Saves time compared to manual formatting.

Use case: Formatting API response payloads for documentation or debugging.

7. Hash Generator (MD5, SHA-256)

Generate hashes for file integrity checks, password hashing tests, or checksum verification.

Use case: Verifying file downloads or testing hash implementations.


Why Tools1984?

  • Free — Core tools are 100% free
  • Secure — SSL encrypted, files auto-deleted after processing
  • Fast — Lightweight, works well on mobile too
  • No registration required for most tools

Check it out: https://tools1984.com


What are your go-to online tools for development? Drop them in the comments!

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