FileKit Lab

Private browser utilities

Turn messy technical data into usable files

Convert HAR logs, CSV rows, API specs, sitemaps, campaign URLs, and subtitle files without creating an account or uploading private inputs.

Built for the handoff

Paste or upload. Check the preview. Download the result.

23
focused tools
0
accounts required
Local
browser processing

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Search by input, output, or job

HAR to CSV

Export network requests, status codes, MIME types, sizes, and timings from a HAR file.

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OpenAPI Endpoint Extractor

Turn Swagger or OpenAPI specs into CSV, Markdown, HTML, or JSON endpoint inventories.

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cURL to Fetch / Python

Convert a DevTools cURL command into JavaScript, Python, HTTPie, or a request summary.

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.env to JSON / YAML

Convert environment variables to JSON, YAML, Docker Compose, Kubernetes, or shell exports.

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JSON to TypeScript

Infer interfaces or type aliases from API response samples and export a TypeScript file.

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JSON to Zod Schema

Generate runtime validation schemas, nested arrays, optional fields, and inferred types.

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CSV to SQL INSERT

Generate CREATE TABLE and INSERT statements for four common SQL dialects.

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CSV to JSONL / AI Batch

Convert spreadsheet rows into JSONL records or OpenAI Batch request lines.

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JSONL to CSV

Flatten JSON Lines files into CSV, including a preset for AI batch results.

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CSV to KML / GeoJSON

Turn coordinates into files for Google Earth, QGIS, Leaflet, and Mapbox.

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Markdown Table Converter

Convert GitHub, Notion, docs, and AI-generated tables to CSV, HTML, JSON, or TSV.

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Subtitle Time Shifter

Move SRT or WebVTT timestamps forward or backward after timeline edits.

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Sitemap XML to CSV

Extract sitemap URLs and metadata into CSV, JSON, or Markdown audit files.

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Robots.txt to CSV

Turn crawler groups and directives into a clean rule table.

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Hreflang Tags Generator

Generate HTML or XML alternate tags from a locale and URL spreadsheet.

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Redirect Map Generator

Build redirect outputs for CSV, Nginx, Apache, or plain text migrations.

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Meta Tags From CSV

Generate title, description, canonical, and Open Graph snippets in bulk.

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Slug Batch Generator

Create URL-safe slugs from titles or product names with duplicate handling.

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URL List Dedupe Sort

Normalize, deduplicate, and sort URL lists before crawl or migration work.

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FAQ Schema JSON-LD

Turn question and answer rows into valid FAQPage structured data.

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Alt Text Coverage Checker

Audit pasted image markup and export a missing-alt accessibility report.

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UTM Campaign Checker

Find missing tracking tags, duplicate URLs, fragments, and inconsistent values.

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Bulk UTM Builder

Create tracked campaign URLs in bulk and export a clean CSV.

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Connected workflows

Finish the next step without starting over

API Inventory

Extract endpoints, inspect request logs, and convert test commands.

Start with OpenAPI

SEO Migration

Export sitemaps, clean URLs, build redirects, and audit robots rules.

Start with a sitemap

CSV Conversion

Move rows into SQL, JSONL, maps, and Markdown tables.

Start with SQL