{"id":22433697,"url":"https://github.com/nlitsme/hexdumper","last_synced_at":"2025-08-01T13:30:59.308Z","repository":{"id":71128327,"uuid":"89953419","full_name":"nlitsme/hexdumper","owner":"nlitsme","description":"hexdumper tool i use for just about anything.","archived":false,"fork":false,"pushed_at":"2023-10-27T05:17:53.000Z","size":106,"stargazers_count":12,"open_issues_count":0,"forks_count":11,"subscribers_count":6,"default_branch":"master","last_synced_at":"2025-04-07T22:41:26.242Z","etag":null,"topics":["hexdumper","reverse-engineering"],"latest_commit_sha":null,"homepage":null,"language":"C++","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/nlitsme.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null}},"created_at":"2017-05-01T19:01:03.000Z","updated_at":"2024-12-24T14:59:51.000Z","dependencies_parsed_at":null,"dependency_job_id":"bb4d1f62-d3a9-4441-8249-4e3523e895d2","html_url":"https://github.com/nlitsme/hexdumper","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/nlitsme/hexdumper","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nlitsme%2Fhexdumper","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nlitsme%2Fhexdumper/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nlitsme%2Fhexdumper/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nlitsme%2Fhexdumper/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/nlitsme","download_url":"https://codeload.github.com/nlitsme/hexdumper/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nlitsme%2Fhexdumper/sbom","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":268231376,"owners_count":24217032,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","status":"online","status_checked_at":"2025-08-01T02:00:08.611Z","response_time":67,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["hexdumper","reverse-engineering"],"created_at":"2024-12-05T22:15:41.590Z","updated_at":"2025-08-01T13:30:58.993Z","avatar_url":"https://github.com/nlitsme.png","language":"C++","funding_links":[],"categories":[],"sub_categories":[],"readme":"dump\n====\n\nGeneric file / device hexdumping tool.\nI use this tool in most of my reverse engineering projects as a first step, for investigating\nthe basic structure of unknown files.\n\n * you can specify an alternate offset for offset 0 of the file. ( `-b` )\n * you can select the dump section of the file by specify a starting offset + length, or a starting offset + end offset.\n * negative values for offsets or lengths are with respect to the end of file.\n * you can specify the number of elements printed on each line. ( `-w` )\n * you can specify a step size, when you want only one line for every `STEPSIZE` bytes. ( `-s` )\n * you can specify the element size printed ( -1, -2, -4, -8 ) for byte, word, dword, qword\n * you can calculate the hash, checksum or crc of a section of the file.\n * when combined with step + width ( `-s` and `-w` ) a hash is printed for each WIDTH bytes every of STEPSIZE chunk of the file.\n * repeating lines are summarized.\n * you can have a hexdump with either hexbytes, hex + ascii, only ascii. or a string dump. ( `-a`, `-x`, `-xx` )\n * you can read from files, block devices, stdin.\n * you can copy the selected file section to stdout or another file. ( `-c` or filename )\n\n\noptions\n-------\n\n * -b BASEOFFSET   make listing appear at the specified offset\n * -h              print all known cryptographic hashes for the selection\n * -o START        start offset for selection, taking into account the base offset.\n * -e END          end offset for the selection\n * -l LENGTH       length starting at 'start', either specify '-e' or '-l'\n * -r CHUNKSIZE    in what chunks to read from the file/device.\n * -w DISPLAYWIDTH how many items to print on each line\n * -s STEPSIZE     amount to skip forward after each line.\n * -a              output as strings, one per line.\n * -c              output the raw bytes\n * -f              don't summarize identical lines\n * -S THRESHOLD    minimum number of identical lines to sumarize\n * -x              hexdump only, no ascii\n * -xx             ascii only, no hexdump\n * -1, -2, -4, -8  size of items to print ( byte, short, dword, qword )\n * -md5, -md160, -md2, -md5, -sha1, -sha256, -sha384, -sha512  various types o hashes.\n * -crc[:start:poly] what crc to calculate.\n * -sum            print various types of checksums.\n\n * an input file.\n * optionally a output file.\n\n\n\ndump2\n=====\n\nLike dump, but uses mmap for opening files, and uses cpputils/hexdumper.h.\n`dump2` does not have the hashing and summing options, but does do better with\nhandling summarizing, and also the -b (baseoffset) option works better.\n\n\nmmdump\n======\n\nHexdump memory mapped devices.\nI used this tool to investigate disk devices on android phones.\n\n\nmmedit\n======\n\nEdit memory mapped devices.\nI use this tool to make patches to disk devices on android phones.\n\nAuthor\n======\n\nWillem Hengeveld \u003citsme@xs4all.nl\u003e\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fnlitsme%2Fhexdumper","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fnlitsme%2Fhexdumper","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fnlitsme%2Fhexdumper/lists"}