DevStack
62 tools · free forever · no sign-up

Tools for essential work.

A curated directory of lightweight online tools for conversion, calculation, and daily digital tasks — all in one fast place.

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Image Compressor

High quality lossless size reduction for JPG, PNG, and WebP.

Media 98% score

Image Converter

Batch convert images between various digital formats instantly.

Media 95% score

Image Resizer

Scale images to exact or proportional dimensions for web and social.

Media 88% score

Background Remover

AI-powered background extraction for portrait images.

Design 82% score

Image Color Picker

Extract hex codes and color palettes from any uploaded photo.

Design 79% score

Favicon Generator

Turn a logo or image into a favicon.zip with ICO, PNG sizes, Apple Touch Icon, Android icons, and a web manifest.

Media 74% score

Image Cropper

Draw a crop rectangle, lock an aspect ratio, or match social sizes.

Media 71% score

EXIF Viewer

Read and extract metadata information from your image files.

Media 68% score

Bulk Optimizer

Process up to 50 images at once with specific quality targets.

Batch Processing 65% score

Image Watermark

Overlay text or logos on images with batch-ready presets.

Media 64% score

One Photo to Document

Convert a single photo into a PDF, Word, Excel, or PowerPoint file.

Documents 62% score

Many Photos, One PDF

Put two or more photos into one PDF, with one photo on each page.

Documents 74% score

Compress and Optimize PDF

Shrink one PDF by recompressing its images and dropping unused data.

Documents 76% score

Merge PDF

Combine PDFs, photos, and Word or PowerPoint files into one PDF.

Documents 78% score

PDF to Office

Convert a PDF into PowerPoint, Word, or Excel files.

Documents 70% score

QR Generator

Custom code creation for links, text, and contact cards.

Development 91% score

Word Counter

Character and word metrics for drafts and captions.

Documents 86% score

Table to JSON

Convert CSV or Excel into a JSON array, or turn JSON back into a spreadsheet.

Documents 88% score

PDF Password

Add a password to a PDF, or remove one when you already know it.

Documents 86% score

Document Diff Checker

Compare two texts side by side and see which lines were added, removed, or changed.

Documents 84% score

Built for getting things done.

Everything you need for everyday digital work, in one bookmark.

Browse all 62 tools

Instant

Open a tool and get results in seconds — no installs, no waiting.

Private

Many tools run entirely in your browser, so files stay on your device.

Lightweight

Focused interfaces built for one job, without clutter or ads.