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All (493)PDF(88)Image & Design(52)Video(23)Audio(16)Document(38)AI Writing(48)AI Image(8)AI Document(13)Business(35)Finance(29)Legal Tools(17)KVKK Compliance(12)Education(42)Developer(46)Calculators(26)

46 tools found

Excel to CSV

Convert Excel XLSX files to CSV format. Universal data output for any application.

UUID Generator

Generate unique UUID v4 values.

Code Comparator

Paste two code snippets, AI compares performance, readability and security.

README Generator

Enter project details, generate a professional GitHub-ready README.md.

Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-512 hash values.

JSON Formatter

Beautify, validate and minify JSON data.

Base64 Encode/Decode

Encode/decode Base64. UTF-8 safe, URL-safe, file to data URI. Fully client-side.

Lorem Ipsum Generator

Generate classic Lorem Ipsum or Turkish placeholder text. Paragraph/sentence/word, HTML wrapped.

URL Slug Generator

Convert titles to SEO-friendly URL slugs. Turkish char transliteration. Batch.

HTML Entity Encode/Decode

Encode/decode HTML entities. XSS-safe escape. Fully client-side.

Code Minifier

Minify CSS, HTML, JS and JSON. Before/after size comparison.

Meta Tag + Open Graph Generator

Generate SEO meta tags, Open Graph and Twitter Card code.

robots.txt Generator

Generate robots.txt. Presets + custom rules + sitemap.

.htpasswd Generator

Generate Apache .htpasswd line (SHA-1). Client-side, password never sent.

JWT Decoder

Decode JWT into header/payload/signature. Expiry check + claim explanations. Token never leaves your browser.

Markdown Preview

Preview Markdown text as formatted HTML in real time.

World Clocks

70+ city clocks on one screen. Pin favorites, search any city. 12h/24h format, Intl API. No server requests.

Text Cipher

Caesar, ROT13, Atbash, Vigenère, Beaufort, Morse, Base64. Brute force panel. All client-side — no data sent.

JSON ↔ CSV Converter

Convert JSON arrays to CSV or CSV to JSON. Custom delimiter, nested object flattening, file download.

JSON Tree Viewer

View JSON data as a collapsible tree. Type coloring, value search, path copying, expand/collapse nodes.

Image to Base64 Converter

Convert images to Base64 data URLs. Drag & drop, <img> tag, CSS background-image, JSON output. Browser-only.

HTML & Markdown Table Generator

Build tables visually. Add/remove rows & columns, edit cells, align columns. Copy as HTML, Markdown, or CSV.

Text Cleaner & Processor

Strip HTML tags, fix whitespace, remove special chars. Sort lines, change case, find & replace. 20+ operations.

JSON Diff Tool

Compare two JSON objects. Additions, deletions and changes shown in a colored tree. Browser-only.

JSON to Table Converter

Convert a JSON array to a visual table. Flattens nested objects. Copy or download as HTML, Markdown or CSV.

Word Frequency Analyzer

Analyze the most frequent words in text. Stop word filter, visual bar chart, CSV export.

Debt Tracker

Snowball and Avalanche debt payoff plans. Monthly interest, payoff duration, and total payment calculation for multiple debts.

Project Tracker

Project, task and budget tracking with status management

Markdown to Word

Convert Markdown to formatted Word DOCX (Pandoc-powered).

Markdown Table Builder

Visual markdown table editor with cells + alignment.

Image Base64 Converter

Image to Base64 data URI or back. For HTML/CSS/email embedding.

Cron Explainer

Explain cron syntax in Turkish + next 5 run times.

User-Agent Parser

UA parser: browser + version + OS + device + engine.

Study Tracker

Log daily study hours → weekly chart + streak + goal. Local-only, no account.

Regex Tester + AI Generator

Test regex + match groups + AI generate regex from Turkish description.

YAML ↔ JSON Converter

Bi-directional YAML ↔ JSON conversion with schema validation.

Passphrase Generator (EFF Style)

3-7 word memorable + secure passphrase. Resistant to dictionary attacks, EFF wordlist style.

Webhook Test Tool

Send test POST to webhook URL, inspect response. Slack/Discord/Zapier debug.

WiFi QR Generator

SSID + password > QR; guests connect with one scan.

UTM Parameter Builder

Build tracked URLs with UTM params for GA campaigns.

Unix Timestamp Converter

Bi-directional Unix sec/ms <-> ISO 8601 conversion.

PRO

KolayDonustur API (PRO)

REST API + key + 1000 req/hour. Programmatic access to 600+ tools.

BETA

KolayDonustur Chrome Extension

Right-click > Open with KolayDonustur. Instant access without leaving browser.

PRO

KolayDonustur CLI (Command Line)

Access 600+ tools via terminal. CI/CD, bash script, automation.

Bulk Color Contrast

Paste CSS variables; WCAG AA/AAA contrast table for all color pairs.

Hub

Markdown Studio

One panel: live preview, HTML render, PDF export.