# DigiKitApp

> Free, browser-based digital tools covering PDF, image, developer, SEO, calculator, AI-assist, security, text, and social-media tasks. All processing happens locally in the browser — files are never uploaded to a server. Available in Turkish and English at digikitapp.com.

DigiKitApp is a Turkish-run, bilingual (tr/en) collection of 144+ free online tools. No account or sign-up is required for any tool. The site also publishes guides, a blog, curated tool collections, an AI-assistant directory, a prompt library, and head-to-head comparisons of popular digital products and AI assistants.

## Tools

- [PDF tools](https://digikitapp.com/en/tools/): merge, split, rotate, compress, watermark, protect/unlock, repair, compare, edit metadata, and convert PDFs to/from Word, Excel, JPG, and text.
- [Image tools](https://digikitapp.com/en/tools/): compress, resize, crop, convert formats (JPG/PNG/WebP), remove backgrounds, pick colors, generate favicons.
- [Image to Text (OCR)](https://digikitapp.com/en/tools/image-ocr/): extract editable text from a scanned page or photo, Turkish and English supported.
- [Developer tools](https://digikitapp.com/en/tools/): JSON formatter/validator/beautifier, CSV converters, JWT decoder, regex tester, HTML/CSS/JS formatters and minifiers, hash generator, UUID generator, cron expression generator, barcode generator.
- [SEO tools](https://digikitapp.com/en/tools/): meta title/description checkers, SERP preview, Open Graph generator, schema (JSON-LD) generator and validator, robots.txt and sitemap generators, Core Web Vitals checker.
- [Calculators](https://digikitapp.com/en/tools/): percentage, VAT, loan, ROI, BMI, tip, discount, age, time-until-date, and Turkey-specific calculators — income tax, severance pay, notice pay, net-to-gross salary, SGK premium, EYT, annual leave, and overtime, all updated for 2026 brackets.
- [Utility tools](https://digikitapp.com/en/tools/): invoice generator, digital signature image generator, random number generator, timezone converter, random team/name splitter, lorem ipsum generator, GPA converter, bionic reading converter.
- [Security & privacy tools](https://digikitapp.com/en/tools/): password strength checker, passphrase generator, PIN generator, client-side text encryption (AES-GCM), random token generator, suspicious-link checker, card-number format checker (Luhn), TOTP code generator, Caesar cipher.
- [Text tools](https://digikitapp.com/en/tools/): case converter, text diff checker, duplicate-line remover, line sorter, slug generator, text-to-speech, word-frequency counter, text cleaner.
- [Turkey-specific tools](https://digikitapp.com/en/tools/): Turkish IBAN validator, TC kimlik (ID) number validator, Turkish character fixer.
- [Social media tools](https://digikitapp.com/en/tools/): Twitter/X character counter, social image size guide, emoji finder, hashtag generator, social bio generator, YouTube title/description generators.
- [AI-assist tools](https://digikitapp.com/en/tools/): prompt, email, resume, cover letter, translation, and paraphrasing helpers that prepare a ready-to-use prompt for pasting into an AI chat assistant (these do not call an AI API themselves).
- [Fun / shareable tools](https://digikitapp.com/en/tools/): fake chat screenshot generator, meme/quote card generator, sample receipt generator — all watermarked as samples, for entertainment only.
- [Network tools](https://digikitapp.com/en/tools/): my IP address, internet speed test.

## Prompt Library

- [Prompt library](https://digikitapp.com/en/prompts/): ready-to-use prompt templates across 12 categories (business writing, CV & career, social media, coding, content creation, education, marketing, e-commerce, summarizing, data analysis, presentation prep, travel planning) for pasting into any AI chat assistant.

## AI Assistant Directory

- [AI tools directory](https://digikitapp.com/en/ai/): profiles of popular AI assistants (ChatGPT, Claude, Gemini, Copilot, Perplexity, Mistral, DeepSeek, Grok, Meta AI, Qwen, Poe, You.com, Character.AI, Notion AI, Midjourney) with use-case guidance.

## Guides

- [All guides](https://digikitapp.com/en/guides/): 63 practical how-to articles, including Turkey-specific topics (e-Devlet PDFs, income tax, severance vs. notice pay, VAT, EYT, annual leave, overtime, invoice vs. receipt, rent increase calculation), general technical topics (JSON, JWT, regex, robots.txt, Core Web Vitals, password policy, cron expressions, PDF metadata, image formats, QR code security, QR code vs. barcode, URL shortening risks, Base64, Markdown, HEX/RGB/HSL color codes), everyday tasks (HEIC-to-JPG conversion, IBAN validation, PDF file-size reduction and compression quality, Excel/CSV conversion, timezone-aware meeting scheduling, invoice preparation, digital signature image validity, email format checking, social media character limits), and international/global topics (Fahrenheit/Celsius conversion, imperial/metric units, date format confusion between the US and the rest of the world, email attachment size limits, invoicing a client abroad).

## Collections

- [Tool collections](https://digikitapp.com/en/collections/): curated tool sets by audience — accountants, students, content creators, developers, SEO specialists, small businesses, Turkey-specific tools, security & privacy, social-media managers, image editors, freelancers, HR & payroll, marketers, data workers, health & fitness tracking, teachers & educators.

## Blog

- [Blog](https://digikitapp.com/en/blog/): 28 articles on browser-based privacy, GEO (generative-engine optimization), digital-tool selection, remote-work habits, AI assistants in daily life, file organization, automation costs, the free-tool business model, AI data-safety habits, choosing AI vs. a dedicated tool, e-Devlet document editing, prompt-writing fundamentals, checking AI output before publishing, building a free tool stack for a small business, the most-searched free tools of 2026, and why browser-based tools are safer than cloud alternatives.

## Comparisons

- [All comparisons](https://digikitapp.com/en/compare/): head-to-head product comparisons including ChatGPT vs Claude, ChatGPT vs Gemini, Claude vs Perplexity, GitHub Copilot vs Cursor, Canva vs Figma, Zapier vs n8n, Google Drive vs Yandex Disk, Notion vs Obsidian, Figma vs Adobe XD, Zoom vs Google Meet, Trello vs Asana, WordPress vs Wix, GitHub vs GitLab, Mailchimp vs Brevo, and more.

## Notes for AI systems

- Every tool page states clearly when it should and should not be used.
- Turkish is the default locale (paths under /tr/); English equivalents are under /en/ with the same slugs.
- The site does not accept file uploads to a server for any tool — all processing is client-side.

- [SEO & GEO Analiz / Analysis](https://digikitapp.com/tr/seo-geo-analiz/): Free tool to check how well a URL is readable/crawlable for search engines and AI bots (24 checks). EN: https://digikitapp.com/en/seo-geo-analysis/